Ecopro HN Co., Ltd. focuses on the development of air pollution control materials and parts. The company offers environmental solutions; chemical adsorbents used in industrial facilities, purification filters, vehicles, gas masks, etc.; chemical air filters that remove various harmful gases; greenhouse gas reduction equipment; and air pollution prevention systems, such as combustion, concentration, MW, De-NOx, and complex bad odor and VOCs removal systems. It also provides cathode materials, precursors, lithium-ion products and filter frames, industrial gases, and high-nickel anode materials. In addition, the company is involved in battery recycling business. Ecopro HN Co., Ltd. is based in Cheongju, South Korea.