Tesla Inc. saw its first increase in vehicle deliveries from its Shanghai factory this year, with the US automaker potentially buoyed by the clearance of regulatory hurdles for its advanced driver-assistance features.

Tesla's sales of its China-made electric vehicles edged up 0.8% in June from a year earlier, snapping an eight-month losing streak, but they continued to fall on a quarterly basis in the face of lower-cost new models from its Chinese rivals.

Tesla's Shanghai Gigafactory delivered 191,000 vehicles in the second quarter, up 10.98 percent from the first quarter. Its June domestic sales reached 61,000 units, marking a 59 percent month-on-month increase,