[FORM 10-K (Mark One) December 31, 2012 For the fiscal year ended: For the transition period from ____________to _____________ Commission File No. 001-34812 THT HEAT TRANSFER TECHNOLOGY, INC. Nevada 20-5463509 (State or other jurisdiction of incorporation or (I.R.S. Employer Identification No.) organization) People’s Republic of China THT Industrial Park 86-434-3265241 Title of each class Name of each exchange on which] [Beijing Juyuan Hanyang Heat Exchange Equipment Co. Ltd. Share Transfer Agreement Transferor: Hanyang International GmbH Transferee: Siping City Juyuan Hanyang Plate Heat Exchanger Co. Ltd. Beijing Juyuan Hanyang Heat Exchange Equipment Co. Ltd. (the "Joint Venture") is a Sino-foreign joint venture between Siping City Juyuan Hanyang Plate Heat Exchanger Co. Ltd. (75% ownership) and Hanyang International GmbH (25% ownership) with] [CERTIFICATIONS I, Guohong Zhao, certify that: 1. I have reviewed this annual report on Form 10-K of THT Heat Transfer Technology, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such] [CERTIFICATIONS I, Zhigang Xu, certify that: 1. I have reviewed this annual report on Form 10-K of THT Heat Transfer Technology, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such] [OF THE SARBANES-OXLEY ACT OF 2002 2. Information contained in the Report fairly presents, in all material respects, the financial condition and results of operation of the Company. Guohong Zhao Chief Executive Officer] [OF THE SARBANES-OXLEY ACT OF 2002 2. Information contained in the Report fairly presents, in all material respects, the financial condition and results of operation of the Company. Zhigang Xu Chief Financial Officer (Principal Financial and Accounting Officer)]

[THT HEAT TRANSFER TECHNOLOGY, INC. ANNOUNCES FOURTH QUARTER AND FISCAL YEAR 2012 RESULTS Sales revenue rose 43.9% year-over-year in fourth quarter 2012, exceeding guidance SIPING, CHINA — April 1, 2013 — THT Heat Transfer Technology, Inc. (Nasdaq: THTI) (“THT” or the “Company”), a leading provider of heat exchangers and heat exchange solutions in China’s clean technology industry, today announced its] [FORM 8-K CURRENT REPORT Date of Report (Date of Earliest event Reported): April 1, 2013 THT HEAT TRANSFER TECHNOLOGY, INC. Nevada 001-34812 20-5463509 (State or other jurisdiction of incorporation (IRS Employer Identification No.) People's Republic of China THT Industrial Park 86-434-3265241 (Former name or former address, if changed since last report) see Item 2.02. Results of Operations and Financial Condition.]

[] [THT Heat Transfer Technology, Inc. Announces Change of Auditor SIPING, CHINA — January 9, 2013 — THT Heat Transfer Technology, Inc. (NASDAQ:THTI, “the Company”, or “THT”), a leading provider of heat exchangers and heat exchange solutions in China’s clean technology industry, today announced that the Company engaged MaloneBailey LLP (“MaloneBailey”) as its independent registered public accounting firm on January 8,] [FORM 8-K CURRENT REPORT Date of Report (Date of Earliest event Reported): January 9, 2013 (January 7, 2013) THT HEAT TRANSFER TECHNOLOGY, INC. Nevada 001-34812 20-5463509 (State or other jurisdiction of incorporation (IRS Employer Identification No.) People's Republic of China THT Industrial Park 86-434-3265241 (Former name or former address, if changed since last report) see On January 7, 2013, PKF-Hong]