Wong's Kong King International (WKK) began as an equipment and services provider to the printed circuit board industry in 1975. It has since diversified, adding electronic toys, consumer electronics, and manufacturing equipment distribution, as well as turnkey factory setup services. It has also entered new industries, including fast food, travel, and original equipment manufacturing services. WKK has offices in China, Japan, Malaysia, the Philippines, Singapore, Taiwan, Thailand, and the US. Asian customers provide about three-quarters of sales.