"We are selling electric buses to Taiwan, and building a plant there could be the next step but probably not that soon -- not on the agenda yet," said company spokesman Paul Lin.

Taiwan's Economic Daily reported that BYD executives visiting Taiwan recently were impressed by local bus makers and that talks were ongoing with two unidentified companies, citing "market talk."

BYD had secured orders from Taiwan and the first shipment, a small quantity, was expected by year end, Lin said. "We have a lot of orders from Shenzhen, Europe and the United States -- more than what we can produce now."

BYD has shipped 250 electric buses to Shenzhen and planned to deliver some to Hong Kong in November, he said.

Singapore is to get BYD electric buses this year, with the United States and Europe in line for 2012, he said.

Investors were disappointed after the company kept pushing back its sales schedule for electric cars. BYD sold only 480 units of its F3DM hybrid and e6 electric car. It also has delayed the U.S. launch of the e6 until 2012.