In early 1990s, when the Chinese version of Microsoft Windows 3.0 attempted to enter Taiwanese market, Chu and some partners competed with it and advocated for more independence of Chinese information technology. Chu worked in Shenzhen with a group of developers and produced a software application for Chinese integration, called "Juzhen" (), stood up against this strong force. It was released to the public domain, and distributed through the "Rexun" magazine. Between Chu and the financially strong Microsoft, the odds were against the former. However, Chu's engine had the benefit of space: in Chu's engine, a font containing 13095 characters took up at most a megabyte each and fit snugly on a floppy disk as compared to the 3–5 megabytes required by competitors' products. This strong advantage of Chu's technology led a sizeable number of technology companies to initiate discussions with Chu for a transfer of technology rights. Soon after, Jinmei (), Zangzhu () and other budget font makers swamped the market, forcing prices down and ensuring that every user could afford original copies of Chinese typefaces.