Schedule 13G
CUSIP 134748102
ITEM 1.
(a) Name of Issuer: Canaan Inc.
(b) Address of Issuers Principal Executive Offices: 30/F, Dicara Silver Tower, 29 Jiefang East Road, Jianggan District, Hangzhou,
Peoples Republic of China
ITEM 2.
(a) Name of Person Filing:
Liu
Xiangfu
Urknall Ltd.
(b)
Address of Principal Business Office, or if None, Residence:
Liu Xiangfu: Room 104-2, Building 5,
Guigu Liangcheng, Haidian District, Beijing, China
Urknall Ltd.: Sertus Chambers, P.O. Box 905, Quastisky Building, Road Town, Tortola,
British Virgin Islands
(c) Citizenship:
Liu Xiangfu: The Peoples Republic of China
Urknall Ltd.: British Virgin Islands
(d) Title of Class of Securities: Class A ordinary shares, par value $0.00000005 per share, of the Issuer
(e) CUSIP Number: 134748102
CUSIP number 134748102 has been assigned to the American Depositary Shares (ADSs) of the Issuer. Each ADS represents 15 Ordinary
Shares of the Issuer.
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SS.240.13d-1(b) OR 240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:
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(a)
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Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o).
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(b)
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Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c).
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(c)
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Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c).
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(d)
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Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a8).
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(e)
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An investment adviser in accordance with ss.240.13d-1(b)(1)(ii)(E);
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(f)
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An employee benefit plan or endowment fund in accordance with ss.240.13d-1(b)(1)(ii)(F);
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(g)
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A parent holding company or control person in accordance with ss.240.13d-1(b)(1)(ii)(G);
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(h)
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A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
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(i)
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A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
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(j)
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Group, in accordance with ss.240.13d-1(b)(1)(ii)(J).
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Not Applicable
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