TANH vs NVNO Comparison

Tantech Holdings Ltd manufactures bamboo charcoal-based products. The company, through its subsidiaries, is engaged in the production and distribution of household products along with a trading business, which involves the export of charcoal products. It also manufactures electric double-layer capacitors carbon materials and low-emission barbecue charcoal. Its product portfolio includes air purifiers and humidifiers, underfloor humidity control, pillows and mattresses, wardrobe deodorizers, mousepads, and wrist mats, refrigerator deodorant, and charcoal toilet cleaner disks. The company has two reportable segments: the Consumer Product segment, and the Electric Vehicle (EV) segment.

enVVeno Medical Corp is a late clinical-stage medical device company focused on advancing bioprosthetic (tissue-based) solutions to improve the standard of care for treating venous disease. The company's product, VenoValve, is a surgical replacement venous valve that is currently being evaluated in a U.S. pivotal study. The company is also developing a second product called enVVe, which is a non-surgical, transcatheter-based replacement venous valve. Both the products are designed to act as one-way valves to help assist in propelling blood up the veins of the leg, and back to the heart and lungs. The company has determined that it currently operates in a single segment, Medical Device development, located in a single geographic location, the United States.