"Its overseas background and knowledge of foreign laws have played an important role for us in negotiating with foreign parties," said a client of High Mark Law Firm, a 25-member full-service firm headquartered in Hangzhou. The team, led by founding partner Gan Weiming, is praised for being "highly efficient" and "able to deliver results". "Its technical instructions are very professional and did help to address the issue," says one client. Last year the team was visible in electronics, software, internet and telecommunications sectors, an example of which saw a high-profile case between industry leaders Insigma and Alstom. The firm successfully invalidated two patents held by Alstom Power China. Insigma Technology also engaged the firm in a technology licensing dispute against a rival company before Singapore International Arbitration Center. The firm's clientele comprises well-known brand names such as China Mobile Zhejiang, 3M China, Sunny Optical Technology and Kose, which mandated the firm in a trade mark infringement dispute against a company in Guangzhou.