(Reuters) -Benchmark Mineral Intelligence, a UK-based pricing and data research firm for energy transition minerals, has cut at least a fifth of its workforce in recent weeks, said three people familiar with the company. The 11-year-old firm had been rapidly expanding over the last couple of years alongside growing market interest in lithium, copper and other minerals needed for electric vehicles and other clean-energy uses. The layoffs include at least 40 people at Benchmark, the three sources said, out ...