Ping sources is one leading company committed to environmental protection productivity, we are specialized in compatible and recycled toner cartridges and inkjet cartridges, with our own main production base located in shenzhen,china, of more than 500 workers and staff , occupied 300,000 square feet, monthly our output 100,000 pcs toner cartridges and 500,000 pcs ink cartridges as well, with available more than 800 models, compatible with more than 12 most famous printer brands.