Arizona Gov. Katie Hobbs joined Taiwanese leaders Monday to open a Phoenix office serving Taiwanese businesses and residents, despite objections from China.

Taiwanese authorities say the office, their 14th in the United States, will support technology partnerships, particularly in semiconductor manufacturing, and serve the city’s growing Taiwanese community. The governor’s office shared two letters from China’s consulate general in Los Angeles, dated July 3 and Aug. 21, urging Hobbs to oppose the plan.

At the opening, Hobbs voiced support for Arizona’s partnership with Taiwan and for Taiwanese companies expanding in the state. Liu Chang, a spokesperson for China’s Embassy in the U.S., said China opposes official contacts between Taiwan and U.S. governments at both federal and state levels.

The opening comes as chipmaker TSMC expands its northern Phoenix operation. Its pledged investment in the city totals $265 billion, including a $100 billion expansion commitment.