Technology Xiaomi announces 3 new smartphone plants, key component unit in India Updated : April 09, 2018 12:30 PM IST The government imposed a 10% tax on imports of key smartphone components, including PCBs. The three new smartphone plants -- in partnership with Foxconn -- are located across campuses in Sri City, Andhra Pradesh and a new campus in Sriperumbudur, Tamil Nadu. PCBA is the process of soldering or assembly of electronic components to a PCB or printed circuit board. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.