IF Aberdeen Indonesia Fund ( (delisted)

Dear Shareholder,

We present this Semi-Annual Report which covers the activities of Aberdeen Indonesia Fund, Inc. (the “Fund”) for the six-month period ended June 30, 2012. The Fund’s primary investment objective is capital appreciation with income as a secondary objective, which the Fund seeks to achieve by investing primarily in Indonesian equity and debt securities.

Net Asset Value Performance

For the six-month period ended June 30, 2012, the total return to shareholders of the Fund based on the net asset value (“NAV”) of the Fund was 9.2% versus a return of (3.2)% for the Fund’s benchmark, the MSCI Indonesia Index.

Share Price Performance

For the six-month period ended June 30, 2012, based on market price, the Fund’s total return was 8.9%, assuming reinvestment of dividends and distributions. The Fund’s share price increased 8.8% over the six months, from $11.78 on December 31, 2011 to $12.82 on June 30, 2012. The Fund’s share price on June 30, 2012 represented a discount of 8.9% to the NAV per share of $14.07 on that date, compared with a discount of 8.5% to the NAV per share of $12.88 on December 31, 2011.

Portfolio Holdings Disclosure

The Fund files its complete schedule of portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. The Fund’s Forms N-Q are available on the SEC’s website at http://www.sec.gov and may be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C. Information about the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. In addition, the Fund makes the information on Form N-Q available to shareholders on the Fund’s website at www.aberdeenif.com or upon request and without charge by calling Investor Relations toll-free at 1-866-839-5205.

Proxy Voting

A description of the policies and procedures that the Fund uses to determine how to vote proxies relating to portfolio securities, and information regarding how the Fund voted proxies relating to portfolio securities during the most recent twelve months ended June 30 is available by August 30 of the relevant year: (i) upon request and without charge by calling Investor Relations toll-free at 1-866-839-5205; and (ii) on the SEC’s website at http://www.sec.gov.

Investor Relations Information

As part of our ongoing commitment to provide information to our shareholders, I invite you to visit the Fund on the web at www.aberdeenif.com. From this page, you can view monthly fact sheets, portfolio manager commentary, distribution and performance information, updated daily fact sheets courtesy of Morningstar®, conduct portfolio charting and access other timely data.

Please take a look at Aberdeen’s Closed-End Fund Talk Channel, where you can watch fund manager web casts and view our latest short films. For replays of recent broadcasts or to register for upcoming events, please visit Aberdeen’s Closed-End Fund Talk Channel at www.aberdeen-asset.us/aam.nsf/usClosed/aberdeentv.

Please ensure that you are enrolled in our email services, which feature timely news from our portfolio managers around the world. Enroll today at www.aberdeen-asset.us/aam.nsf/usclosed/email and be among the first to receive the latest closed-end fund news, announcements of upcoming fund manager web casts, films and other information. Please note that Aberdeen does not share our shareholder information with any other organizations.

Please contact us if you have any questions by:

Yours sincerely,

Christian Pittard

President

Market Review

The Fund’s NAV rose by 9.2% in U.S. Dollar terms over the six months ended June 30, 2012, outperforming the benchmark MSCI Indonesia Index, which declined by 3.2% for the period. Both asset allocation and stock selection were positive. Although the Indonesian domestic stock market hit another record high during the latter half of the review period, external worries caused the benchmark to slide sharply. Initial euphoria that had buoyed stock prices on the back of the European Central Bank’s liquidity injections and the Federal Reserve’s pledge to keep interest rates low until 2014 gave way to speculation about Greece’s potential exit from the Eurozone, as well as anaemic economic data from Europe, the U.S., China and India. In particular, Eurozone fears had triggered a squeeze in U.S. Dollar liquidity that forced the Indonesian Rupiah to depreciate sharply. Although there was some relief towards the period-end from the pro-bailout New Democracy party’s victory at the Greek election and Germany’s bowing to pressure to allow the use of stopgap measures to contain Europe’s debt crisis, these failed to make up for the losses.

In Indonesia, Bank Indonesia kept policy rates steady amid stabilizing inflation, which stood at 4.5% in May. Pressure remained on the Rupiah as the nation’s current account deficit worsened. The economy slowed, posting 6.3% Gross Domestic Product (“GDP”) growth in the first quarter, down marginally from the annual rate of 6.5% in the fourth quarter of last year. Banking sector uncertainty improved

somewhat after the central bank clarified that any change in ownership cap for local banks would not be retrospective. Meanwhile, corporate governance ratings will be an important input in determining single-shareholder ownership limits for banks. This dilutes the impact of the upcoming regulatory changes for lenders. Elsewhere, an attempt to cut fuel subsidies was met with widespread opposition and in the end, a watered-down version of the proposal was passed. We believe that the burden from fuel subsidies will continue to be a fiscal hindrance on the country’s finances.

Outlook

Looking ahead, we believe the stock market is likely to remain cautious, as the underlying problems behind the European debt crisis remain unresolved and the sustainability of the U.S. economic recovery is less than certain. At the time of writing, the European Central Bank and its UK counterpart lowered interest rates, alongside China, which trimmed its rates for the second time in a month. While the moves were supposedly independent, the coincidence triggered worries that the global economic outlook may be far gloomier than anticipated. In Indonesia, the slowdown in growth appears worrying, but economic activity is likely to remain resilient and GDP is expected to continue to grow at around 6%, with, in our view, inflation well under control and domestic demand healthy.

Aberdeen Asset Management Asia Limited

Computershare Trust Company, N.A., the Fund’s transfer agent, sponsors and administers a Dividend Reinvestment and Direct Stock Purchase Plan (the “Plan”), which is available to shareholders.

The Plan allows registered shareholders and first time investors to buy and sell shares and automatically reinvest dividends and capital gains through our transfer agent. This is a cost-effective way to invest in the Fund.

Please note that for both purchases and reinvestment purposes, shares will be purchased in the open market at the current share price and cannot be issued directly by the Fund.

For more information about the Plan and a brochure that includes the terms and conditions of the Plan, please call Computershare at 1-800-647-0584 or visit www.computershare.com/buyaberdeen.

June 30, 2012

1. Organization

Aberdeen Indonesia Fund, Inc. (the “Fund”), formerly The Indonesia Fund, Inc., was incorporated in Maryland on January 8, 1990 and commenced investment operations on March 9, 1990. The Fund is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as a closed-end, non-diversified management investment company. The Fund trades on the NYSE MKT under the ticker symbol “IF”.

The Fund seeks long-term capital appreciation as a primary objective and income as a secondary objective by investing primarily in Indonesian equity and debt securities.

2. Significant Accounting Policies

The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements. The financial statements of the Fund are prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income and expenses for the period. Actual results could differ from those estimates. The U.S. Dollar is used as both the functional and reporting currency.

(a) Security Valuation:

The Fund is required to value its securities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

Securities are valued at the “Valuation Time.” The Valuation Time is as of the close of regular trading on the New York Stock Exchange (usually 4:00 p.m. Eastern Time). Equity securities are typically valued at the last quoted sale price. If there is no sale price available, the last quoted mean price provided by an independent pricing service approved by the Board is used. Securities traded on NASDAQ are valued at the NASDAQ official closing price. Prices are typically obtained from the primary market or exchange on which each security trades. Investment companies are valued at net asset value as reported by such company. Securities using this pricing methodology are categorized as Level I investments for purposes of ASU 820. The Fund does not adjust the quoted price for Level 1 investments.

Securities listed on a foreign exchange are valued either at fair value (see description below) or at the last sale price at the close of the exchange on which the security is principally traded. Foreign securities, currencies, and other assets and liabilities denominated in foreign

currencies are translated into U.S. Dollars at the exchange rate of said currencies against the U.S. Dollar, as of the Valuation Time, as provided by an independent pricing service approved by the Board.

The Fund’s equity securities that are traded on a foreign exchange or market which closes prior to the Fund’s Valuation Time are fair valued by an independent pricing service. The fair value of each such security generally is calculated by applying a valuation factor provided by the independent pricing service to the last sales price for that security. The Fund receives a factor for each security from a third party pricing provider. If the pricing service is unable to provide a valuation factor for a security, the security will continue to be valued at the last sale price at the close of the exchange on which it is principally traded, subject to adjustment by the Fund’s Pricing Committee, if deemed necessary. When the fair value prices are utilized, the value assigned to the foreign securities may not be the same as quoted or published prices of the securities on their primary markets. These factors are based on inputs such as, depositary receipts, S&P 500 Index/S&P 500 Futures, Nikkei 225 Futures, sector indices/ETFs, exchange rates, and historical opening and closing prices of each security. Securities using this valuation factor are categorized as Level 2 investments.

Securities for which market quotations are not readily available, or for which an independent pricing service does not provide a value or provides a value that does not represent fair value in the judgment of the Fund’s investment adviser or designee, are valued at fair value under procedures approved by the Board. In addition, fair value determinations are required for securities whose value is affected by a “significant” event that materially affects the value of a domestic or foreign security which occurs subsequent to the time of the close of the principal market on which such domestic or foreign security trades and before the Valuation Time (i.e., a “subsequent event”). Typically, this will involve events occurring after the close of a foreign market on which a security trades and before the next Valuation Time.

For the six months ended June 30, 2012, there have been no changes to the valuation procedures approved by the Board.

The Fund utilizes a three-tier fair value hierarchy to establish a classification of fair value measurements for disclosure purposes. The Level in the fair value hierarchy within which the fair value measurement falls in its entirety is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk, for example, the risk inherent in a particular valuation technique used to measure fair value including such a pricing model and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable.

June 30, 2012

Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability, which are based on market data obtained from sources independent of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances.

The three-tier hierarchy of inputs is summarized in the three broad Levels listed below.

Level 1 – quoted prices in active markets for identical investments.

Level 2 – other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).

Level 3 – significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments, information provided by the underlying investee companies such as publicly traded prices, financial statements, capital statements).

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

June 30, 2012

(b) Short-Term Investment:

The Fund sweeps available cash into a short-term time deposit available through Brown Brothers Harriman & Co. (“BBH & Co.”), the Fund’s custodian. The short-term time deposit is a variable rate account classified as a short-term investment.

(c) Foreign Currency Transactions:

Foreign currency amounts are translated into U.S. Dollars on the following basis:

(i)  market value of investment securities, other assets and liabilities at the rate of exchange at the Valuation Time; and

(ii)  purchases and sales of investment securities, income and expenses at the relevant rates of exchange prevailing on the respective dates of such transactions.

The Fund does not isolate that portion of gains and losses on investments in equity securities which is due to changes in the foreign exchange rates from that which is due to changes in market prices of equity securities. Accordingly, realized and unrealized foreign currency gains and losses with respect to such securities are included in the reported net realized and unrealized gains and losses on investment transactions balances.

The Fund reports certain foreign currency related transactions and foreign taxes withheld on security transactions as components of realized gains for financial reporting purposes, whereas such foreign currency related transactions are treated as ordinary income for U.S. federal income tax purposes.

Net unrealized currency gains or losses from valuing foreign currency denominated assets and liabilities at period end exchange rates are reflected as a component of net unrealized appreciation/depreciation in value of investments, and translation of other assets and liabilities denominated in foreign currencies.

Net realized foreign exchange gains or losses represent foreign exchange gains and losses from transactions in foreign currencies and forward foreign currency contracts, exchange gains or losses realized between the trade date and settlement date on security transactions, and the difference between the amounts of interest and dividends recorded on the Fund’s books and the U.S. dollar equivalent of the amounts actually received.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with those of domestic origin, including unanticipated movements in the value of the foreign currency relative to the U.S. Dollar. When the U.S. Dollar rises in value against foreign currency, the Fund’s investments denominated in that

currency will lose value because its currency is worth fewer U.S. Dollars; the opposite effect occurs if the U.S. Dollar falls in relative value.

(d) Security Transactions and Investment Income:

Securities transactions are recorded on the trade date. Realized and unrealized gains/(losses) from security and currency transactions are calculated on the identified cost basis. Dividend income is recorded on the ex-dividend date except for certain dividends on foreign securities, which are recorded as soon as the Fund is informed after the ex-dividend date. Interest income is recorded on an accrual basis. Expenses are recorded on an accrual basis.

(e) Distributions:

On an annual basis, the Fund intends to distribute its net realized capital gains, if any, by way of a final distribution to be declared during the calendar quarter ending December 31. Dividends and distributions to shareholders are recorded on the ex-dividend date.

Dividends and distributions to shareholders are determined in accordance with federal income tax regulations, which may differ from GAAP. These differences are primarily due to differing treatments for foreign currencies.

(f) Federal Income Taxes:

The Fund intends to continue to qualify as a “regulated investment company” by complying with the provisions available to certain investment companies, as defined in Subchapter M of the Internal Revenue Code, and to make distributions of net investment income and net realized capital gains sufficient to relieve the Fund from all, or substantially all, federal income taxes. Therefore, no federal income tax provision is required.

The Fund recognizes the tax benefits of uncertain tax positions only where the position is “more likely than not” to be sustained assuming examination by tax authorities. Management of the Fund has concluded that there are no significant uncertain tax positions that would require recognition in the financial statements. Since tax authorities can examine previously filed tax returns, the Fund’s U.S. federal tax returns for each of the four fiscal years up to the period ended October 31, 2011, are subject to such review.

3. Agreements

(a) Investment Adviser:

Aberdeen Asset Management Asia Limited (“AAMAL”) serves as the Fund’s investment adviser with respect to all investments. AAMAL is a direct wholly-owned subsidiary of Aberdeen Asset Management PLC. AAMAL receives as compensation for its advisory services from the

June 30, 2012

Fund, an annual fee, calculated weekly and paid quarterly, equal to 1.00% of the first $50 million of the Fund’s average weekly net assets, 0.95% of the next $50 million and 0.90% of amounts above $100 million. For the six months ended June 30, 2012, AAMAL earned $553,937 for advisory services to the Fund.

(b) Fund Administration:

BBH & Co. is the U.S. Administrator for the Fund and certain other funds advised by AAMAL and its affiliates (collectively the “Funds”). The Funds pay BBH & Co. a monthly administration and fund accounting service fee at an annual rate of 0.02% of the Funds’ aggregate assets up to $250 million, 0.015% for the next $250 million and 0.01% in excess of $500 million.

Each Fund pays its pro rata portion of the fee based on its level of assets with a monthly minimum fee per Fund of $2,500. For the six months ended June 30, 2012, BBH & Co. earned $15,001 from the Fund for administrative and fund accounting services.

(c) Investor Relations:

Under the terms of an Investor Relations Services Agreement, Aberdeen Asset Management Inc. (“AAMI”), an affiliate of AAMAL, provides investor relations services to the Fund and certain other Funds.

Pursuant to the terms of the Investor Relations Services Agreement, AAMI provides, among other things, objective and timely information to shareholders based on publicly-available information; provides information efficiently through the use of technology while offering shareholders immediate access to knowledgeable investor relations representatives; develops and maintains effective communications with investment professionals from a wide variety of firms; creates and maintains investor relations communication materials such as fund manager interviews, films and webcasts, published white papers, magazine and articles and other relevant materials discussing the Fund’s investment results, portfolio positioning and outlook; develops and maintains of effective communications with large institutional shareholders; responds to specific shareholder questions; and reports activities and results to the Board and management detailing insight into general shareholder sentiment.

For the six months ended June 30, 2012, the Fund incurred investor relations fees of approximately $28,792 for investor relations services. Investor relations fees and expenses in the Statement of Operations include certain out-of-pocket expenses.

(d) Directors’ Purchase Plan:

Fifty percent (50%) of the annual retainer of the Independent Directors is invested in Fund shares and, at the option of each Independent

Director, 100% of the annual retainer can be invested in shares of the Fund. During the six months ended June 30, 2012, no shares were purchased pursuant to the Directors compensation plan. As of June 30, 2012, the Directors as a group owned less than 1% of the Fund’s outstanding shares.

4. Investment Transactions

For the six months ended June 30, 2012, Fund purchases and sales of securities, other than short-term investments, were $12,625,583 and $20,912,401, respectively.

5. Capital

The authorized capital stock of the Fund is 100,000,000 shares of common stock, $0.001 par value. As of June 30, 2012, the Fund had 8,271,922 shares outstanding.

6. Credit Facility

The Fund is a party to a joint credit facility along with certain other Funds. The current facility matures on November 9, 2012. The Funds agreed to a $10 million committed revolving joint credit facility with BBH & Co. for temporary or emergency purposes. Under the terms of the joint credit facility, the Funds pay an aggregate commitment fee on the average unused amount of the credit facility. In addition, the Funds pay interest on borrowings at the Overnight LIBOR rate plus a spread. For the six months ended June 30, 2012, the Fund had no borrowings under the joint credit facility.

7. Share Repurchase Program

Effective December 6, 2011, the Board authorized management to make open market purchases from time to time in an amount up to 10% of the Fund’s outstanding shares whenever the Fund’s shares are trading at a discount to net asset value of 12% or more. Open market purchases may also be made within the discretion of management if the discount is less than 12%. The Board has instructed management to report repurchase activity to it regularly, and to post the number of shares repurchases on the Fund’s website on a monthly basis. For the six months ended June 30, 2012, the Fund did not repurchase any shares through this program.

8. Portfolio Investment Risks

(a) Risks Associated with Foreign Securities and Currencies:

Investments in securities of foreign issuers carry certain risks not ordinarily associated with investments in securities of U.S. issuers. Such risks include, among others, currency risks, information risk and political risk. Currency risk results from securities denominated in currencies other than U.S. Dollars that are subject to changes in value due to

June 30, 2012

fluctuations in exchange rates. Information risk arises with respect to foreign securities when key information about foreign issuers may be inaccurate or unavailable. Political risk includes future political and economic developments, and the possible imposition of exchange controls or other foreign governmental laws and restrictions. In addition, with respect to certain countries, there is the possibility of expropriation of assets, confiscatory taxation, political or social instability or diplomatic developments, which could adversely affect investments in those countries. Other risks of investing in foreign securities include liquidity and valuation risks. Certain countries also may impose substantial restrictions on investments in their capital markets by foreign entities, including restrictions on investments in issuers of industries deemed sensitive to relevant national interests.

These factors may limit the investment opportunities available and result in a lack of liquidity and high price volatility with respect to securities of issuers from developing countries.

Some countries require governmental approval for the repatriation of investment income, capital or the proceeds of sales of securities by foreign investors. In addition, if there is deterioration in a country’s balance of payments or for other reasons, a country may impose temporary restrictions on foreign capital remittances abroad. Amounts repatriated prior to the end of specified periods may be subject to taxes as imposed by a foreign country.

(b) Risks Associated with Indonesian Markets:

The limited liquidity of the Indonesian and other foreign securities markets may also affect the Fund’s ability to acquire or dispose of securities at a price and time that it wishes to do so. Accordingly, in periods of rising market prices, the Fund may be unable to participate in such price increases fully to the extent that it is unable to acquire desired portfolio positions quickly; conversely the Fund’s inability to dispose fully and promptly of positions in declining markets will cause its net asset value to decline as the value of unsold positions is marked to lower prices.

The Indonesian securities market is an emerging market characterized by a small number of company listings, high price volatility and a relatively illiquid secondary trading environment. These factors, coupled with restrictions on investment by foreigners and other factors, limit the supply of securities available for investment by the Fund. This will affect the rate at which the Fund is able to invest in Indonesian and other foreign securities, the purchase and sale prices for such securities and the timing of purchases and sales.

(c) Risks Associated with European Markets:

A number of countries in Europe have experienced severe economic and financial difficulties. Many non-governmental issuers, and even certain governments, have defaulted on, or been forced to restructure, their debts; many other issuers have faced difficulties obtaining credit or refinancing existing obligations; financial institutions have in many cases required government or central bank support, have needed to raise capital, and/or have been impaired in their ability to extend credit; and financial markets in Europe and elsewhere have experienced extreme volatility and declines in asset values and liquidity. These difficulties may continue, worsen or spread within and without Europe. Whether or not the Fund invests in securities of issuers located in Europe or with significant exposure to European issuers or countries, these events could negatively affect the value and liquidity of the Fund’s investments.

9. Contingencies

In the normal course of business, the Fund may provide general indemnifications pursuant to certain contracts and organizational documents. The Fund’s maximum exposure under these arrangements is dependent on future claims that may be made against the Fund and, therefore, cannot be estimated; however, based on experience, the risk of loss from such claims is considered remote.

10. Tax Information

At June 30, 2012, the identified cost for federal income tax purposes, the gross unrealized appreciation from investments for those securities having an excess of value over cost, the gross unrealized depreciation from investments for those securities having an excess of cost over value and the net unrealized appreciation from investments were $65,490,493, $54,260,658, $(3,303,176) and $50,957,482, respectively.

11. Subsequent Events

Management has evaluated the need for disclosures and/or adjustments resulting from subsequent events through the date the financial statements were issued. Based on this evaluation, no adjustments were required to the financial statements as of June 30, 2012.