Hua Yu Weng

Part of Livingstone Health Holdings Ltd., Aton Environmental (Anqing) Co., Ltd. provides sewage water treatment services. Aton Environmental (Anqing) Co. was acquired by Green World Holdings Ltd. from Bella Forte Ltd. on October 10, 2010.

Part of Livingstone Health Holdings Ltd., Aton Sludge Treatment (Jiangyin) Co. Ltd. operates a sludge treatment plant. Aton Sludge Treatment (Jiangyin) Co. was acquired by Green World Holdings Ltd. from Bella Forte Ltd. on October 10, 2010.

Aton Environmental (Shenyang) Co. Ltd. is a Chinese company that provides sewage treatment services, manufactures environmental protection technologies, and offers environmental consulting services.

Part of Tenneco Works Ltd., Asia Copper Pte Ltd. provides copper smelting and refining services. The company is based in Singapore, Singapore. Asia Copper was acquired by Tenneco Works Ltd. from Livingstone Health Holdings Ltd. on December 31, 2012 for $0.0 million.

New Tsingyi Pte Ltd. recycles and sells scrap metals such as stainless steel, aluminium extrusions, aluminum rim, used beverage cans, wires, copper, brass, zinc, and lead. The firm offers dismantling, demolition, and destruction services. The company is headquartered in Singapore.

Part of Livingstone Health Holdings Ltd., Tsingtech Recycling Pte Ltd. is a Singaporean company that provides metal scrap recycling services. The company is based in Singapore, Singapore.

Part of Livingstone Health Holdings Ltd., SCT Copper Industry (Shenyang) Co. Ltd. is a Chinese company that distributes copper and copper products. The company is based in Shenyang, China.

Western Copper Co. Ltd. operates as a copper ball manufacturer. It offers automatic feeders, automatic stackers, buffers, turners, conveyors, cooling buffers, automatic stackers, three lot conveyors, accumulators, automatic feeders, and product board feeders. The company’s products are used for various applications, such as automatic line allocation flow and queue action; circuit, letter, solder proof, and other processes; PCB printing circuit flow; automatic exposure; automatic printing; laying equipment of wet process; automatic flow and site restricted place; delivering and intermittent check of automatic processes. Western Copper was founded in 1997 and is headquartered in Taoyuan, Taiwan.

Part of Metech International Ltd., Centillion Environment & Recycling (Singapore) Pte Ltd. provides metal recycling and recovery services.

Part of Metech International Ltd., Metech Recycling (Singapore) Pte Ltd. is a Singaporean company that provides treatment processing services for toxic chemical waste. The company is based in Singapore, Singapore. Joo Siong Sin has been the CEO of the company since 2013.