Most ODD manufacturers beside Japanese and South Korean ones are Taiwanese. Quanta, Asustek, Accesstek, MSI, Gigabyte, Lite-On IT, AOpen, BenQ, BTC... there have been many more but not many stay in the market for very long. Economic structures of Taiwan, Japan, and South Korea are very different from one another. Japan = fierce competitions of giant conglomerates, South Korea = competitions of Hyundai, Samsung, LG, SK... just a handful of family Jaebols, Taiwan = thousands of tiny but efficient companies, a lot more risky and much less capital.
DigiTimes is one of Taiwan industry + government's media to support Taiwanese IT industry so Japanese and South Korean companies are just competitors to them. Most of the information's published only in Chinese.