Tantech Holdings Ltd is a holding company primarily engaged in the development, manufacturing and trading of bamboo charcoal-based products. The products primarily include purification and deodorization products, household cleaning products and barbecue charcoals. The purification and deodorization products include air purification products, deodorant products and bamboo vinegar. The household cleaning products include toilet cleaning products, kitchen cleaning products, personal care products and clothing detergent products. The products are primarily sold under the brand name Charcoal Doctor. The products are used in industrial energy applications, as well as household cooking, heating, purification, agricultural and cleaning applications. The Company is also engaged in the industrial purchases and sales of charcoal. The Company distributes its products within the domestic market and to overseas markets such as Japan, South Korea, the Middle East and Europe.