Tantech Holdings Ltd. engages in the development and manufacture of bamboo-based charcoal products. It operates through the Consumer Product and Electric Vehicle segments. The Consumer Product segment manufactures, sell and trade Charcoal Doctor branded products and BBQ charcoal in China well as biodegradable packaging business. The Electric Vehicle segment offers solar cells, lithium-ion batteries, auto parts, and electric control systems. The company was founded by Zheng Yu Wang on November 19, 2010 and is headquartered in Lishui, China.