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.

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.

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.

WITSON is a distinguished Chinese manufacturer and exporter of car DVD players, boasting an impressive 21-year history since its establishment in 2004.

Guangdong Haotian New Science&Technology Co., Ltd. is a joint venture enterprise of advanced technology authorized by the General Administration of Press and Publication to produce recordable CDR, DVD+r, DVD-r, CD-RW, DVD+RW/DVD-RW, dl 8.5GB DVDR, double side 9.4GB DVDR, CD case and DVD case and etc.