THT Heat Transfer Technology, Inc. (THT), formerly BTHC VIII, Inc, is a holding company. The Company, through its subsidiaries, is a provider of heat exchange products. THT is engaged in the manufacturing and trading of plate heat exchangers and various related products. Through its China-based subsidiary, Siping City Juyuan Hanyang Plate Heat Exchanger Co. Ltd., the Company designs, manufactures and sells plate heat exchangers, shell-and-tube heat exchangers, heat exchanger units, other heat exchanger products, and provide total heat exchange solutions. Its other product includes air-cooled heat exchanger. On November 30, 2009, BTHC VIII, Inc. (BTHC) merged with THT. In July 2013, THT Heat Transfer Technology Inc announced that its operating subsidiary Siping Juyuan Hanyang Plate Heat Exchanger Co., Ltd. completed the acquisition of the remaining 25% ownership stake in Beijing Juyuan Hanyang Heat Exchange Equipment Co., Ltd.