SHI Sinopec Shanghai Petrochemical Co Ltd

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

(A joint stock limited company incorporated in the People’s Republic of China)

(Stock Code: 00338)

2021 Interim Results Announcement

For the Six Months Ended 30 June 2021

1

Prepared under the People’s Republic of China (“China”) Accounting Standards for Business Enterprises (“CAS”)

Unit: RMB’ 000

2

Unit: RMB’ 000

For a detailed description of the differences between financial statements prepared under CAS and those prepared under IFRS, please refer to the Supplementary Information to the Financial Statements prepared under CAS contained in the 2021 interim report.

3

Unit: RMB’ 000

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As at 30 June 2021, so far as was known to the Directors or chief executive of the Company, the interests and short positions of the Company’s substantial shareholders (being those who are entitled to exercise or control the exercise of 5% or more of the voting power at any general meeting of the Company but excluding the Directors, chief executive and Supervisors) in the shares and underlying shares of the Company who are required to disclose their interests pursuant to Divisions 2 and 3 of Part XV of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong) (the “SFO”) or as recorded in the register of interests required to be kept under section 336 of the SFO were as set out below:

Interests in ordinary shares of the Company

(L): Long position; (S): Short position; (P): Lending Pool

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Note :

8

Save as disclosed above, as at 30 June 2021, the Directors have not been notified by any person (other than the Directors, chief executive and Supervisors) who had interests or short positions in the shares or underlying shares of the Company which would fall to be disclosed to the Company pursuant to Divisions 2 and 3 of Part XV of the SFO or as recorded in the register of interests required to be kept by the Company under Section 336 of the SFO.

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As at 30 June 2021, the interests and short positions of the Directors, chief executive and Supervisors of the Company in the shares, underlying shares and debentures of the Company or its associated corporations (within the meaning of Part XV of the SFO) which were required to be notified to the Company and the Hong Kong Stock Exchange pursuant to Divisions 7 and 8 of Part XV of the SFO (including interests and short positions which they were taken or deemed to have under such provisions of the SFO); or to be recorded in the register of interests required to be kept under Section 352 of the SFO; or as otherwise notified to the Company and the Hong Kong Stock Exchange pursuant the “Model Code for Securities Transactions” set out in Appendix 10 to the Rules Governing the Listing of Securities on the Stock Exchange of Hong Kong Limited (“Hong Kong Listing Rules”) were as follows:

(L) : Long position

Save as disclosed above, as at 30 June 2021, so far as was known to the Directors, chief executive and Supervisors of the Company, none of the Directors, chief executive or Supervisors of the Company had any interests or short positions in the shares, underlying shares and debentures of the Company or its associated corporations which were required to be disclosed or recorded pursuant to the SFO and the Hong Kong Listing Rules as mentioned above.

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(The following discussion and analysis should be read in conjunction with the unaudited financial report of the Group and the notes in the 2021 interim report. Unless otherwise specified, certain financial data involved interim report hereinafter are extracted from the unaudited interim financial report of the Group prepared in accordance with IFRS.)

Review and Discussion of Operating Results

In the first half of 2021, the global economy gradually recovered from the recession caused by COVID-19, but the pace of recovery varied across countries. China’s achievements in coordinating epidemic prevention and control as well as economic and social development have been continuously expanded and consolidated, and the economy has continued to recover steadily. In the first half of the year, there was a year-on-year increase of 12.7% in China’s GDP. China’s petrochemical industry got off to a good start with substantial growth in revenue and profits. There was an increase in the production quantity of major products in the petrochemical industry and the consumption of major products in the market has been performing well. However, in response to climate changes, the development of the petrochemical industry has also faced new challenges. The aim to peak carbon dioxide emissions and to achieve carbon neutrality has put forward new requirements to the development mode and quality of the industry.

In the first half of 2021, faced with rare opportunities of operational development such as gradual recovery of global economy, strong upward rise of international oil prices and obvious recovery of market demand, the Company adhered to the working philosophy of “to challenge advanced levels, to emulate highest standards”. The Company focused on stable operation, system optimization, reform and innovation, and team building to achieve overall stable production operation, complete the largest equipment overhaul in history, and steadily promote the reform and development of various tasks. Therefore, the Company has largely achieved its production and operation goals, and had a good start in the 14th Five Year Plan.

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For the six months ended 30 June 2021, the revenue of the Group was RMB37.0885 billion, an increase of RMB1.461 billion or 4.10% over the same period last year; pre-tax profit achieved RMB1.543 billion (compared with a pre-tax loss of RMB2.3094 billion in the same period last year), an increase of RMB3.8524 billion; profit after tax and non-controlling shareholders’ equity achieved RMB1.2765 billion (a loss of RMB1.6708 billion in the same period last year), an increase of RMB2.9473 billion.

In the first half of 2021, affected by the major overhaul, the Group produced a total of 5.9085 million tons of main commodities, representing a decrease of 11.19% from the same period last year. From January to June 2021, 6.2101 million tons of crude oil were processed (including 197,500 tons of imported materials), representing a year-on-year decrease of 11.52%. The production of refined oil amounted to 3.6183 million tons, representing a year-on-year decrease of 8.34%, and the production of gasoline amounted to 1.4612 million tons, representing a year-on-year decrease of 0.86%; the production of diesel recorded 1.5484 million tons, representing a year-on-year decrease of 15.67%; the production of aviation kerosene recorded 608,800 tons, representing a year-on-year decrease of 4.52%; the production of liquified gas recorded 264,400 tons, representing a year-on-year decrease of 38.58%. The production of ethylene recorded 303,000 tons, representing a year-on-year decrease of 25.92%; the production of paraxylene recorded 147,400 tons, representing 53.97% less than last year. The production of plastic resins and copolymers recorded 451,200 tons, a year-on-year decrease of 15.09%. The production of synthetic fiber raw materials recorded 134,200 tons, representing a decrease of 50.95% year-on-year; the production of synthetic fiber polymer recorded 171,900 tons, representing a year-on-year increase of 3.80%; the production of synthetic fiber recorded 54,500 tons, representing a year-on-year decrease of 24.93%. In the first half of the year, the Group’s production and sales ratio was 100.66%, and the payment recovery rate (excluding related parties) was 99.59%.

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The major overhaul was successfully completed. The overhaul, which lasted nearly three and a half months and involved a total of 58 sets of devices, is the largest shutdown maintenance in the history of the Company. As of 23 June 2021, all the overhauled devices have been successfully put to production.

Overall safety and environmental protection were under control. In the first half of the year, the Group coordinated the relationship between development and safety, implemented and promoted the construction of process safety management system, and effectively laid the foundation for stable operations. Leaders at all levels shall be responsible for business safety production, strengthen the management of the direct operation links and contractor management, and start the revision of the Company’s HSE management system manual. Achievements in building green enterprises have been consolidated. The Company actively promoted the green enterprise plan and the green infrastructure and foundation establishment, carried out pollution prevention and control, started to promote the 3rd round of comprehensive environmental improvement action in Jinshan area, strengthened the operation and management of environmental protection facilities, established the boundary pollutant alarm and odor tracing mechanism, and realized the intelligent control of LDAR testing data of the Company. The Company actively participated in carbon trading. From January 2021 to June 2021, the Company’s effluent comprehensive compliance rate was 100%, and the total discharge of COD, ammonia nitrogen and nitrogen oxide decreased by 32.36%, 39.59% and 18.79% respectively. The Company’s cumulative comprehensive energy consumption recorded 1.039 tons of standard coal per RMB10,000, compared with 1.067 tons of standard coal per RMB10,000 last year, a decrease of 2.66%. Affected by the overhaul, the average value of VOCs concentration at plant boundary in the first half of the year rose 5.52% year-on-year.

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The operation of the devices was generally stable. In the first half of the year, keeping it as the goal to rein “three smalls” (small fluctuation, small abnormality, small deviation) and put an end to “three unplanneds” (unplanned lockout, unplanned shutdown, unplanned knocking-off), the Group worked hard to avoid unplanned lockout, increased the inspection of unit running quality, and paid special attention to material balance and public works coordination during the major overhaul. In the first half of the year, there was no level 2 or above unplanned lockout, and the expected goal was achieved. The Company established the process changing management system and online approval process to realize PDCA closed-loop management. Among the 58 main technical and economic indicators included in the monitoring, 18 indicators showed improvement as compared to the level of last year, with a year-on-year improvement rate of 31.03%. 16 items reached the industry advanced level, and the industry advanced rate reached 27.59%.

There was continuous improvement in the Company’s system optimization. In the first half of the year, the Group continued to prioritize effectiveness and benefits and be guided by the market to achieve economic benefit which exceeded the expected target. The Company optimized its crude oil procurement, timely adjusted the mix of light, medium and heavy crude oil according to the trend of international crude oil prices and increased mutual substitution and procurement flexibility. Meanwhile, the Company made rational use of financial derivatives to maintain the DME (Dubai Mercantile Exchange) pricing of Oman crude oil. The Company optimized the product structure, and timely adjusted the product structure according to the market and efficiency. In the first half of the year, the diesel ratio was 1.06, representing a year-on-year decrease of 0.19. The Company made an effort to increase the output of high value-added chemical products, new products and differentiated products, and adopted intermediary materials such as cracked C4, C5, ethylene and propylene to ensure the high load operation of efficient devices such as polyethylene and butadiene. The Company strengthened the connection between production and sales, made a three-month rolling price forecast, actively promoted the increase of the total amount of petroleum coke replacement, opened up the export process of gasoline and low-sulfur aviation coal in the form of general trade, and implemented the dynamic optimization of production scheduling mechanism in multiple products. The Company strengthened the cost control, strictly reduced the non-productive expenses, promoted the Company to reduce the cost scale, and improved the cost input-output efficiency.

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Steady progress was made in reform and development. The Company comprehensively promoted the three-year action of deepening reform, carried out the action of improving the world-class management, revised the performance appraisal management methods and implementation rules, standardized the advanced units in the industry to ensure the normalization of the “three basic” work, and sought new development in “oil to chemicals”. The Company vigorously promoted the security risk rectification project of the central control room of the olefin division and other projects, and completed the overhaul synchronously. The Company promoted the construction of the large-tow carbon fiber project, accelerated the hydrogen demonstration project and the 250,000 tons/year thermoplastic elastomer new material project built in cooperation with Baling Petrochemical. We increased research efforts in key application fields of carbon fiber composite materials, expanded cooperation in 3D braiding and processing applications, alternative materials for precision instruments, spinning rollers and other projects, so as to create a new engine for the transformation and development of the Company.

The team building of the Group continued to be optimized. The Company did a good job at talent selection and recruitment, and strengthened staff education and training. The Company strengthened the introduction of talents, and actively introduced “high-quality, excellent, advanced and scarce” talents in light of the needs of carbon fiber development. The Company strengthened staff management, strictly implemented the epidemic normalization prevention and control measures, and the vaccination rate of registered staff reached 94.42%.

The following table sets forth the Group’s sales volume and net sales after business tax and surcharges for the Reporting Period:

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In the first half of 2021, the Group achieved a total net sales profit of RMB31.636 billion, an increase of 5.71% compared with the same period last year, of which the net sales of synthetic fibers, resins and plastics and petroleum products increased by 1.55%, 5.58% and 15.84% respectively; trade in intermediate petrochemicals and petrochemical products fell by 6.23% and 11.43% respectively. Affected by the overhaul, the sales volume of each sector has a significant decline, synthetic fiber, resin and plastic, intermediate petrochemical products and petroleum products decreased by 23.12%, 9.85%, 29.41% and 7.38% respectively. The weighted average selling prices of all sectors increased compared to the same period, due to the increase in crude oil prices and the positive economic outlook.

In the first half of 2021, the Group’s cost of sales was RMB30.832 billion, a decrease of 5.28% from the same period last year, accounting for 97.46% of net sales. The Group’s main raw material is crude oil. In the first half of 2021, under the background of global COVID-19 vaccination and economic recovery, the outlook for global oil demand improved and international crude futures prices rose in the first half of this year under the price fluctuation. With the exception of March, when international benchmark oil prices fell due to second wave of COVID-19 outbreak in Europe, all months ended higher. In the first half of the year, Brent crude futures closed as high as USD76.18 / barrel and as low as USD51.09 / barrel. The average of half-year price was around USD65.23 / barrel, an increase of 54.90% year-on-year; WTI crude oil futures closed as high as USD74.05 / barrel and as low as USD47.62 / barrel. The half-year average was around USD62.22 / barrel, an increase of 69.00% year-on-year; Dubai crude futures closed as high as USD73.85 / barrel and as low as USD50.45 / barrel, with a half-year average of around USD63.62 / barrel, an increase of 56.20% year-on-year.

In the first half of 2021, the Group’s crude oil unit processing cost was RMB2,849.13 / ton, an increase of RMB132.14 / ton or 4.86% compared to the same period last year. The crude oil processing capacity of the Group was 6,210,100 tons (including 197,500 tons of processing materials supplied), 808,200 tons less than the same period last year (among which, the crude oil processing capacity of the Group was 794,017 tons less). From January to June this year, the cost of crude oil processing decreased by RMB1.363 billion. Among them, the cost of crude oil processing decreased by RMB2.157 billion, and the unit processing cost increased by RMB0.794 billion. Crude oil costs accounted for 55.56% of the Group’s cost of sales in the first half of the year.

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In the first half of 2021, the Group’s expenditure on other excipients was RMB5.210 billion, an increase of 32.27% from the same period last year. During the Reporting Period, the Group’s depreciation and amortization expenses and maintenance expenses were RMB938 million and RMB1,007.5 million respectively, representing a year-on-year increase of 5.65% in depreciation and amortization expenses, mainly due to the addition of new fixed assets during the Reporting Period; maintenance costs increased by 75.10% year-on-year, mainly because of the increase in maintenance costs due to major overhaul during the Reporting Period.

In the first half of 2021, the Group’s sales and administrative expenses recorded RMB209.7 million, a decrease of 10.31% from RMB233.8 million in the same period last year, mainly due to a RMB24.7 million decrease in handling and incidental expenses during the Reporting Period.

In the first half of 2021, the Group’s income from other business was RMB56.2 million, an increase of RMB2.2 million over the same period last year, mainly due to the combined impact of RMB10 million decrease in government subsidy income and RMB12 million increase in rental income during the Reporting Period.

In the first half of 2021, the Group reported a financial net income of RMB210.5 million, compared to financial net income of RMB151.0 million over the same period last year, mainly due to an increase in interest income of RMB70.5 million during the Reporting Period. In the first half of 2021, the Group’s profit after tax and non-controlling interest was RMB1,276.5 million, an increase of RMB2,947.3 million compared with the loss of RMB1,670.8 million in the same period last year.

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Liquidity and Capital Resources

In the first half of 2021, the Group’s net cash outflow from operating activities was RMB2,443.4 million, compared with a net cash outflow of RMB2,938.9 million in the same period last year.

In the first half of 2021, the Group’s net cash outflow from investment activities was RMB3,106.4 million, compared with a net cash outflow of RMB3,120.6 million in the same period last year.

In the first half of 2021, the Group generated a net cash inflow of RMB2.8 million from financing activities, compared with a net cash inflow of RMB1,469.2 million in the same period last year. This is mainly due to the decrease of net cash flow generated by borrows obtained by the Group during the Reporting Period of RMB1,467.5 million compared with the same period last year.

Borrowings and Debts

The Group’s long-term borrowings are mainly used for capital expansion projects. The Group generally arranges long-term borrowings in accordance with capital expenditure plans. The short-term debt is used to supplement the working capital required by the normal production and operation of the Group. As of 30 June, 2021, the total loan balance of the Group increased by RMB2.012 billion from the opening balance to RMB3.56 billion. The balance of the Group’s short-term bonds decreased by RMB2.017 billion compared with the opening balance to RMB1.001 billion. The Group’s total borrows at fixed interest rates are RMB4.54 billion.

Capital Expenditures

In the first half of 2021, the Group’s capital expenditure was RMB1.193 billion. It was mainly used for the preliminary work and construction of raw silks (24,000 tons/year) and 48K large-tow carbon fiber (12,000 ton/year) project, security risk rectification project of the central control room of the olefin division, and adaptability revamping project of adsorption tower internals and control system of parax unit 2# of aromatic division.

In the second half of the year, the Group will continue to promote the raw silks (24,000 tons/year) and 48K large-tow carbon fiber (12,000 tons/year) project, and adaptability revamping project of adsorption tower internals and control system of parax unit 2# of aromatic division. The projects to be commenced will include hydrogen demonstration project, high-pressure air-cooling material upgrading project for medium pressure hydrocracking unit of the oil refining department, etc. The planned capital expenditure of the Group can be financed from operating cash and bank credit.

Gearing Ratio

As of 30 June 2021, the Group’s gearing ratio was 36.65% (as at 30 June 2020: 35.92%). The gearing ratio was calculated as: total liabilities/total assets.

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The Group’s Employees

As of 30 June 2021, the number of registered employees of the Group was 8,199, among which 5,008 were production personnel, 2,143 were sales, finance and other personnel, and 1,048 were administrative personnel. 59.63% of the Group’s employees were college graduates or above.

The Group determines the remuneration of its employees and directors on the basis of their position, performance, experience and current market pay trends. Other benefits include equity incentive plans and state-administered pension plans. The Group also provides professional and vocational training for its employees.

Income Tax

The Enterprise Income Tax Law of the PRC took effect from 1 January 2008, subsequent to which the income tax rate for enterprises was uniformly adjusted to 25%. As of half year ended 30 June 2021, the income tax rate applicable to the Group is 25%.

Disclosure Required by the Hong Kong Listing Rules

Save as disclosed herein, pursuant to paragraph 40 of Appendix 16 to the Hong Kong Listing Rules, the Company confirms that there were no material differences between the existing information of the Company relating to the matters as set out in paragraph 32 of Appendix 16 to the Hong Kong Listing Rules and the relevant information disclosed in the Company’s 2020 annual report.

Market Outlook and Work Plans for the Second Half of the Year

Looking forward to the second half of 2021, although the world economic recovery is relatively strong, the uncertainty of COVID-19, the game between major powers which continues to intensify, the industrial chain and supply chain to recover, the US monetary policy shift and other factors will increase the security pressure on China’s economic development. The base effect, policy stimulus effect and trade substitution effect are weakening, and the macroeconomic growth rate will continue to fall. OPEC+ reached a new production increase agreement combined with the overall high inventory pressure, so the rising situation of the petrochemical industry market may fall back, and profitability may be weaker than the first half.

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In the face of the grim situation and arduous tasks, the Group will enhance the awareness of opportunities, establish the bottom line thinking, actively promote the Company’s operating performance in a stable and good direction, promote all-round high-quality development, and resolutely complete the annual targets and tasks.

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Unit: RMB’ 000

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(1) Principal Operations by Industry or Product

Unit: RMB’ 000

(2) Revenue by Geographical Location

Unit: RMB’ 000

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Unit: RMB’ 000

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Overseas assets

During the Reporting Period, the Group’s overseas assets were RMB16.94 million, accounting for 0.04% of the total assets.

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As one of the largest integrated petrochemical enterprises in China with an integrated refinery and petrochemical capacity, the Company possesses competitive business scale and strength, which made it a major manufacturer of refined oil, intermediate petrochemicals, synthetic resins and synthetic fibers in China. The Company also has self-owned utilities and environmental protection systems, as well as sea transport, inland shipping, rail transport and road transport ancillary facilities.

The Company’s major competitive advantages include quality, geographical location and its vertically integrated production. The Company has over 40 years of petrochemical production and management experience, and has accumulated extensive resources in the petrochemical industry. The Company has won several quality product awards from the central and local governments. Located at the core region of Yangtze River Delta, the most economically active region in China with a strong demand for petrochemical products, the Company has built a comprehensive logistics system and supporting facilities with close geographic proximity with most of its clients which enables the Company to enjoy the convenience of coastal and inland shipping. This gave the Company a competitive edge in terms of transportation costs and timely delivery. The Company has leveraged its advantages in integrated refinery and petrochemical capacity to actively strengthen product structure, while continuously improving products quality and variety. The Company has also improved production technology and boosted capacity of key upstream units to maximize the use and the efficiency in the utilization of its corporate resources, and is therefore able to achieve strong and sustainable development.

(1) Entrusted Wealth Management

The Company did not engage in entrusted wealth management during the Reporting Period.

(2) Entrusted Loans

The Company did not engage in entrusted loans during the Reporting Period.

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During the Reporting Period, the Company did not raise funds, nor has it used the funds raised from the previous reporting periods.

Shanghai SECCO Petrochemical Company Limited, an associate company of the Group, recorded a net profit of RMB2,328.0 million during the Reporting Period, and recorded a profit attributable to the Group of RMB466.0 million, representing 37.46% of net profit or loss attributable to equity shareholders of the Company during the Reporting Period.

Unit: RMB’ 000

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The 2020 Profit Distribution Plan was considered and approved at the 2020 Annual General Meeting held on 16 June 2021 to distribute a dividend of RMB1.00 per 10 shares (including tax) totaling RMB1,082,381,350 based on the total issued share of 10,823,813,500 as at dividend payout date. The relevant announcement was published in Shanghai Securities News, China Securities Journal and Securities Times on 17 June 2021 and was uploaded to the websites of the Hong Kong Stock Exchange and Shanghai Stock Exchange on 16 June 2021. The record date for H shares dividend payment was 28 June 2021 and the dividend payment date for H shares was 20 July 2021. On 12 July 2021, the Company published an announcement on the implementation of profit distribution for A shares for the year 2020. The record date for A shares dividend payment was 19 July 2021 and the ex-dividend date was 20 July 2021. The dividend payment date for A shares was 20 July 2021. The Profit Distribution Plan was implemented as scheduled.

Nil.

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The Company acted in strict compliance with regulatory legislations such as the PRC Company Law, the PRC Securities Law, the Corporate Governance Principles for Listed Companies and the Guidelines for Establishing the Independent Directors System for Listed Companies issued by the CSRC, as well as the relevant requirements of the Shanghai Stock Exchange, the Hong Kong Stock Exchange and the New York Stock Exchange to push forward the innovation of the Company’s system and management, to improve the corporate governance structure, and to strengthen the establishment of the Company’s system in order to enhance the overall image of the Company.

On 24 August 2021, the Audit Committee of the Tenth Session of the Board held its sixth meeting, primarily to review the financial report of the Group for the Reporting Period, and discussed matters relating to the risk management, internal control and financial reporting.

During the Reporting Period, the Company did not purchase, sell or redeem any of the Company’s securities (for the definition of “securities”, please refer to paragraph 1 of Appendix 16 to the Hong Kong Listing Rules).

During the Reporting Period, the Company applied and complied with all code provisions as set out in the Corporate Governance Code contained in Appendix 14 to the Hong Kong Listing Rules.

The Company has adopted and implemented the Model Code for Securities Transactions to regulate the securities transactions of the Directors and Supervisors of the Company. After making specific enquiries with all Directors and Supervisors of the Company and having obtained written confirmations from each Director and Supervisor, the Company is not aware of any incident of non-compliance with the Model Code for Securities Transactions by the Directors and Supervisors of the Company during the Reporting Period.

The Model Code for Securities Transactions is also applicable to the senior management who may be in possession of unpublished inside information of the Company. The Company is not aware of any incident of non-compliance with the Model Code for Securities Transactions by the senior management of the Company.

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CONSOLIDATED AND COMPANY BALANCE SHEETS (CONTINUED)

AS AT 30 JUNE 2021

(All amounts in thousands of Renminbi Yuan unless otherwise stated)

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CONSOLIDATED AND COMPANY INCOME STATEMENTS

FOR THE SIX MONTHS ENDED 30 JUNE 2021

(All amounts in thousands of Renminbi Yuan unless otherwise stated)

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CONSOLIDATED AND COMPANY CASH FLOW STATEMENTS

FOR THE SIX MONTHS ENDED 30 JUNE 2021

(All amounts in thousands of Renminbi Yuan unless otherwise stated)