By Sijia Jiang HONG KONG (Reuters) – Chinese telecom equipment maker ZTE , which is facing U.S. trade sanctions that could severely disrupt its supply chain, is slashing about 3,000 jobs, including a fifth of positions in its struggling handset business in China, company sources said. Its global handset operations will shed 600 jobs, or 10 percent of the total, with the cuts concentrated in China, where it has been losing market share. "Cuts in the handset business in China will be beyond 20 percent," said a senior executive who has been briefed on the lay-offs, which are scheduled to be completed within the first quarter.