A couple of Chinese technology companies are helping to turn old mobile phones into profit.

Shenzhen GEM has signed a strategic cooperation agreement with Aihuishou.com for a long-term brand partnership. With the cooperation, Shenzhen Green Eco-Manufacturer High-Tech Company Ltd. will become the prefered environmental-protection processing partner of Aihuishou.com in China.

Aihuishou.com will deliver its collected materials, including scrap electronics products such as mobile phones, laptops, and batteries as well as related parts, to Shenzhen GEM for processing. In return, Shenzhen GEM agrees to implement a harmless environmental recycling processing to those products.

Through this deal, Shenzhen GEM will start to convert its business from offline recycling to focusing on online e-commerce recycling.

Headquartered in Shenzhen, Shenzhen GEM is one of the largest old and useless batteries and electronic waste recycling companies in China.

Financial terms of the deal were not released.