Yong Xing Zang

Tianjin Dong An Brothers Ltd. operates as an investment holding company. The company was founded on July 9, 2015 and is headquartered in Tianjin, China.

Tianhe (Baoding) Environmental Engineering Co., Ltd. engages in the manufacture of denitration catalyst. It researches, develops, designs, manufactures, and sells selective-catalytic-reduction (SCR) honeycomb catalyst and flat-plate-type catalyst and provides after-sale services. It also engages in catalyst regeneration, the recycling and reuse of waste catalyst, as well as the provision of denitration-related services and technology consultation services. The company was founded on April 15, 2011 and is headquartered in Baoding, China.

Tianjin Dong An Brothers Ltd. operates as an investment holding company. The company was founded on July 9, 2015 and is headquartered in Tianjin, China.

Part of Tianjin Dong An Brothers Ltd., Baoding Lizhong Wheel Manufacturing Co., Ltd. is a private company that manufactures and distributes alloy wheels and other motor parts. The company is based in Baoding, China.

Part of Tianjin Dong An Brothers Ltd., Baoding Lizhong Wheel Manufacturing Co., Ltd. is a private company that manufactures and distributes alloy wheels and other motor parts. The company is based in Baoding, China.

Part of Tianjin Dong An Brothers Ltd., Baoding Lizhong Wheel Manufacturing Co., Ltd. is a private company that manufactures and distributes alloy wheels and other motor parts. The company is based in Baoding, China.

Tianhe (Baoding) Environmental Engineering Co., Ltd. engages in the manufacture of denitration catalyst. It researches, develops, designs, manufactures, and sells selective-catalytic-reduction (SCR) honeycomb catalyst and flat-plate-type catalyst and provides after-sale services. It also engages in catalyst regeneration, the recycling and reuse of waste catalyst, as well as the provision of denitration-related services and technology consultation services. The company was founded on April 15, 2011 and is headquartered in Baoding, China.

Tianhe (Baoding) Environmental Engineering Co., Ltd. engages in the manufacture of denitration catalyst. It researches, develops, designs, manufactures, and sells selective-catalytic-reduction (SCR) honeycomb catalyst and flat-plate-type catalyst and provides after-sale services. It also engages in catalyst regeneration, the recycling and reuse of waste catalyst, as well as the provision of denitration-related services and technology consultation services. The company was founded on April 15, 2011 and is headquartered in Baoding, China.

Baoding Longda Aluminum Industry Co., Ltd. engages in research and development, production and sales of lightweight aluminum alloy materials for mid-to-high-end automotive brands and powertrains. Its main products are aluminum alloy ingots and aluminum alloy liquid. The company was founded on December 19, 1995 and is headquartered in Baoding, China.

Tianjin Dong An Brothers Ltd. operates as an investment holding company. The company was founded on July 9, 2015 and is headquartered in Tianjin, China.

Baoding Longda Aluminum Industry Co., Ltd. engages in research and development, production and sales of lightweight aluminum alloy materials for mid-to-high-end automotive brands and powertrains. Its main products are aluminum alloy ingots and aluminum alloy liquid. The company was founded on December 19, 1995 and is headquartered in Baoding, China.