WKK
From Sega Retro
WKK or Wong's Kong King is a conglomerate based in Hong Kong.
WKK was an original equipment manufacturer (OEM) for many of Sega's consoles, including the Sega Mega Drive, Sega Saturn, Sega Dreamcast, and possibly the Sega Master System too. They also produced original accessories for Sega systems, specifically the Remote Control System, and Sega MegaFire.
Along with being an OEM, WKK also had a consumer products division which distributed Sega consoles and games in Hong Kong, beginning with the Sega Master System around 1986/7 and continuing through to the Sega Dreamcast. Their WKK Industries China division also distributed the Sega Master System in China, and from 1993 the Sega Mega Drive too.