Website:

• https://www.sun-denshi.co.jp/eng/company/history/

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• SUNTAC was a trademark of the Japanese Sun Electronics Corporation (today SUNCORPORATION).

• Sun Electronics used the SUNTAC name before the known PC chipsets. Its history lists the SUNTAC-PC series from 1984.

• Sun Electronics states that development of the SUNTAC PCs later led into additional business fields including chipsets.

• The SUNTAC-62 Chip Set EMS Driver Rev. 1.00 carries © Sun Electronics Corp. 1987.

• Sun Electronics filed the SUNTAC trademark in the US on December 10, 1987 (Serial No. 73700893). The listed goods include integrated circuits, LSI, VLSI, ROM, RAM and gate arrays, as well as computer hardware.

• SUNTAC was also registered in Taiwan in the name of Sun Electronics of Japan.

• The current SUNCORPORATION website contains a photo of an “EVALUATION MOTHERBOARD ST62M02.”

• GCH-Sun Systems Co., Ltd. / GSS was a separate company in Taipei, Taiwan, and was not the same company as Sun Electronics/SUNCORPORATION.

• An SEC filing describes GCH-SunSystems Company Ltd. as a subsidiary of GCH Systems Inc.

• The same filing states that George C. Huang of GCH Systems became a director of GCH-SunSystems in February 1987.

• A GCH-Sun Systems datasheet exists for the ST62CS20-B “SUNTAC 62 CHIP SET.”

• Later business relations are also documented: Sun Electronics invested in Award Japan K.K. in 1997, while George Huang was Chairman/CEO of Award.

So the documented position is: Sun Electronics/SUNCORPORATION and GCH-Sun Systems were separate companies. SUNTAC is directly documented as a Sun Electronics trademark, while GCH-Sun Systems also documented products from the ST62 SUNTAC chipset family.