The logo of Taiwan Semiconductor Manufacturing Company (TSMC) is displayed at TSMC Museum of Innovation in Hsinchu, Taiwan, April 9. Reuters-Yonhap

TAIPEI — TSMC is seeing strong, multi-year demand for its AI chips as it invests a further $100 billion to expand its Arizona facilities, but it needs to address several challenges, such as a shortage of construction workers there, a top executive said.

Speaking after blockbuster second-quarter results on Thursday, Chief Financial Officer Wendell Huang said the company is "very happy" with progress in Arizona, which is why it decided to ramp up investment to $265 billion.

"We will continue to invest," he said in an interview, adding that the company was very grateful for U.S. government support.

"We continue to see customers' strong demand — multi-year structural demand."