Taiwan-based OSATs, many of which are involved with TSMC and other chipmakers, are considering Mexico as their regional base of operations to assist partners looking to expand into the US, according to industry sources. TSMC founder Morris Chang recently expressed support for US policies helping to delay the development of Chinese semiconductor technology. In a discussion with Chip War author Chris Miller, Chang disagreed with the US's repeated emphasis that Taiwan is a "dangerous place" and hopes Taiwan will continue to increase its global semiconductor industry market share. USI, a subsidiary of packaging and testing leader ASE Group, already has a factory in Mexico. ASE's ISE Labs also has a facility in the US' Silicon Valley. King Yuan Electronics (KYEC) chairman C. K. Lee previously stated that he agrees with Chang.