TOMEI International plans to use its role in the purchase of 20 per cent of Juko Laboratories to enhance its high-technology manufacturing capability in China. Tomei chairman Johnny Lau Wing-hung said Juko already provided Tomei with parts. In a placement, Tomei bought a $48 million stake that amounted to 16.6 per cent of the enlarged capital of Juko. The holding represented an important strategic investment in a group with expertise in multi-layer circuit boards for personal computers, he said. ''This is very specialised and Juko has high-quality circuit board manufacturing technology which is important to us,'' Mr Lau said. Tomei had important hi-tech factories in the mainland, he said. One of its main clients was Matsushita, which strategically could help Tomei, he said. The group had also entered into a joint venture with Huizhou Hong Tu Electronic, a wholly owned operation of the municipal government of Huizhou, in Guangdong. ''This is a first for us and it could also be strategically beneficial to us in the future to have this kind of backing,'' said Mr Lau. The project is split 51:49 in Huizhou's favour. Hong Tu is being re-named Dong Hui Investment, which will act as the vehicle taking the Juko stake. Mr Lau said the Huizhou operation would give Tomei access to software expertise at Dong Hui, supplied with the aid of Juko.