Tantech Holdings Ltd. (Tantech BVI) is a holding company. The Company, through its subsidiaries, is a developer and manufacturer of bamboo-based charcoal products for industrial energy applications and household cooking, heating, purification, agricultural and cleaning uses. The Company has three segments: consumer product, trading and biofuel energy. The Consumer products segment manufactures and sells Charcoal Doctor branded products and barbecue (BBQ) charcoal in China. Its products include purification and deodorization products and cleaning products. The Trading segment conducts rubber and other trading businesses. The Company's subsidiary, Tantech Charcoal, is engaged in the trading business. The biofuel energy segment produces and sells BBQ charcoal to customers in Asia, Europe and North America. It produces and sells bamboo-based fuel for Electric Double-Layer Capacitor (EDLC). Tantech BVI's solid charcoal products are used for purification and deodorization.