KET developed the junction block, an automotive integrated module product, with its technology partner YAZAKI, a Japanese firm, in 1999 and has provided the product to domestic car makers ever since.

KET has independent development capabilities encompassing product design, mold design and manufacture, production, and warranty. Moreover, as a way to guarantee the impeccable quality, the products are tested under a variety of conditions including vibrations and temperature culminations. Such efforts have greatly enhanced the reliability of the products.