BYD Co, China's biggest rechargeable-battery maker, fell the most in two months in Hong Kong trading on Friday, as investors locked in gains following a rally prompted by Warren Buffett's plans to buy into the company.

BYD fell as much as 12 percent, the biggest intraday decline since July 24. The company surged 89 percent in three trading sessions after Buffett's MidAmerican Energy Holdings Co said on September 27 that it will buy a 9.9-percent stake for HK$1.8 billion (US$232 million).

(Shanghai Daily October 6, 2008)