HONGKONG STONE GROUP LIMITED Established in 2004, the Stone Group is headquartered in Shenzhen with an 8,000 square metres manufacturing centre and 15 HUBs worldwide for timely service. Worldwide recycling and resale of used servers and key parts such as server chassis, CPU, RAM memory, storage (SSD/HDD), GPUs, RAID, NICs... etc. As an integrated IT group, Stone specialises in data center servers and plays a leading role in the ITAD field in China with customers such as leading internet companies Alibaba, Tencent, ByteDance and Baidu... The Stone manufacturing process is fully automated and managed, so every product from Stone is traceable. Qualification ISO9001 ISO14001 ISO20000 ISO27001... In 2021  sales exceeded ?1,500,000,000 CNY. Our value--- People oriented  and customer first, innovation  and good teamwork ITAD of Stone Group- recycle of IDC(internet data center) assets with services such as testing, maintenance, equipment dismantling, traffic crushing and data erasure. Provide safe, reliable and cost-effective solutions through re-manufacturing such as upgrades, reconfiguration, and stability testing as well as quality certification and maintenance services.