Headquartered in Tainan, Taiwan, Catcher makes metal casings for a range of consumer electronics, including the iPhone.

Smaller iPhone assembler Wistron last month agreed to sell two of its factories in China to fast-rising Chinese manufacturer Luxshare Precision Industry Co for 3.3 billion yuan ($477 million).

Analysts have said Chinese companies are gearing up to get into the much coveted iPhone assembly chain amid a supply chain reshuffle following the China-U.S. trade war.

Taiwanese firms currently dominate the iPhone supply chain, including Foxconn, the world's largest contract electronics manufacturer, Pegatron and Wistron.

($1 = 6.9220 Chinese yuan renminbi)

(Reporting by Josh Horwitz in Shanghai and Ben Blanchard in Taipei; Editing by David Goodman and Susan Fenton)