United Microelectronics Corporation (UMC) is a manufacturer of multifarious and high quality toner chips . it is one of the leading companies in the toner cartridge chips sales performance worldwide and supplies more than 65 countries with reliable products. although be founded in 2002 professional. UMC product line includes almost all kinds of new toner chips developed by a professional team of 10 experts and engineers. our toner cartridge chips cover the most comprehensive models for toners at present market and customized products will surely maximize customer satisfaction with diversified demands. Due to excellent technology and high-quality service,we are sure to be your optimal supplier of the print toner chips consumables.
