Established in 2003, Guangzhou Ronc Electronic Sciences & Technology Co., Ltd. Possesses two decades of extensive expertise in the selling of electronic products. We specialize in the research, development, sale, and service of a diverse range of items, including D V D RS, C D RS, U S B Flash Drives, memory cards, S S D, H D D, power banks, minicomputer, wireless earphones, and speakers. Recognized for excellence, our two independent brands, "RONC" and "INBEST, " enjoy a commendable reputation among our esteemed clientele.

DJS Tech was founded in 2001. It is a company that integrates IT R& D, design, manufacturing, sales, develop overseas brands and agents, and mainly produces electronic products. The company's main professional products include all in one PC, mini PC, POS PC machine, desktop computer, Education all in one machine, motherboard and so on.

Topford Development Ltd is a leading optical disc company with plant locates in China. With nearly ten years experience in blank and pre-record disc manufacturing, we firstly boost of a group of professional sales team and quality control team. Secondly, we equipped with dedicated production lines for all kinds of discs ranging from 25GB blue ray, 8.5GB dual layer, 700MB 80min CD-R, 8X / 16X 4.7GB DVD, 9.4GB double side DVD, , mini disc, RW to pre-recorded discs. After years of development, today our production capacity has reached up to 20 million pieces and is still expanding.

Topford is focusing on storage media products with 26 years manufacturing experiences and 12 years exporting history. Dating from 1987, Topford started manufactory of 3.5" floppy diskette, which is our initial products in storage line. Till now, we still keep one floppy production line running to meet a certain customers' demanding. From 2004, we invested the optical disc production line equipped with ODM, 4M & ANWELL, opened our business in blank discs. Up to date, our products covers almost all the range of disc group from 700MB CD-R, DVDR, DL DVD+R, 25GB BD-R to mini CD-R/DVDR, CD-RW, DVDRW and CD/DVD/BD Replication. Monthly output reached 20 million in peak season.

Copor Opto-Electrical Limited founded in 2002, first foray into audio-visual products industry, established in guangdong chaozhou succession "haotian magnetoelectricity" video production\blank disc production base; Dongguan copor electronics\shenzhen winner digital as packing processing, storage base. Our company has passed ls09001 2000 quality system certfication and the ISO14001 environmental management system certification\obtain CD storage technology patent license of high-tech enterprises.

Copor opto-electrical Limited is a professional manufacturer for high capacity storage optical discs in China. Our factory covers 10000 square kilometers.

UmeDisc (pronounced you. Me. Disc), headquartered in Hong Kong, is a wrold class Top 4 optical sotrage media disc manufacturer for clients around the world. Founded in year 2003, UmeDisc is now the largest manufacturer of DVD+R/DVD-R/CD-R in Hong Kong and China.