Seres Group's (SHA:601127, HKG:9927) sales fell 17% year over year to 36,480 units in May, according to a Tuesday filing with the Shanghai bourse.
New energy vehicle sales fell 16% to 33,476 units.
Production slid 18% to 36,583 units. NEV production declined 15% to 34,233 units.
Shares of the automotive manufacturer rose nearly 2% in Shanghai and Hong Kong during recent trade.