Tantech Holdings Ltd, together with its subsidiaries, develops and manufactures bamboo-based charcoal products for industrial energy applications and household cooking, heating, purification, agricultural, and cleaning uses in the People's Republic of China and internationally. It provides pressed and formed charcoal briquettes for use in grills, incense burners, and other applications under the Algold brand. The company also offers Charcoal Doctor branded products, such as air purifiers and humidifiers, automotive accessories for air purification, underfloor humidity control products, pillows and mattresses, wardrobe deodorizers, mouse pads and wrist mats, refrigerator deodorants, charcoal toilet cleaner disks, liquid charcoal cleaners, shoe insoles, and decorative charcoal gifts. In addition, it provides bamboo vinegar, a liquid byproduct for use in disinfectants, detergents, lotions, specialized soaps, toilet cleaners, and fertilizers, as well as in various agricultural applications comprising fruit, vegetable, and other plant fertilizers; soil conditioners and sweeteners; and flower nutrients. Further, the company is involved in the biodegradable packaging and supply chain businesses, as well as provision of commercial factoring services. The company was founded in 1998 and is headquartered in Lishui, the People's Republic of China.