** U.S.-listed shares of TSMC TSM.N, the world's main producer of advanced AI chips, fall 3.6% to $404.32 premarket

** Co pledges to invest a further $100 billion in the U.S. state of Arizona

** Says AI-driven demand will remain strong up to 2030

** A bellwether for AI chip demand and major supplier to chip designer Nvidia NVDA.O, TSMC reports a 77% jump in Q2 profit to a record high of T$706.6 billion ($21.94 billion)

** TSMC has previously announced total planned investments of $165 billion to build chip factories in the U.S.

** Co says it expects full-year revenue in U.S. dollar terms to increase by slightly more than 40% for 2026, compared with a previous forecast of more than 30%

** Up to last close, the stock TSM.N up ~38% vs. Philadelphia SE Semiconductor Index's .SOX ~75% gain this year

($1 = 32.2010 Taiwan dollars)