Tan Chong Motor influence the Malaysian automotive industry through its parts manufacturing division, APM Automotive Holdings Berhad (APM). The 2000s was a decade of diversification in the Tan Chong Motor portfolio. Since its founding, the Tan Chong name had become synonymous with Datsun and Nissan vehicles in Malaysia, but in mid-2003, the company adopted the Renault brand in line with the Renault–Nissan Alliance. A new subsidiary, TC Euro Cars Sdn. Bhd. (TCEC) was created to market, distribute and provide after-sale services for Malaysian-market Renault cars. The Renault brand was handled by Quasar Carriage Sdn. Bhd. prior to the advent of TCEC. Additionally, local
Automotive Energy Supply Corporation a further ¥100 billion ($1.1 billion) in AESC, establishing an additional factory to increase capacity for around 200,000 vehicles per year. Trial production at Zama began mid 2009. In 2010 the Nissan Leaf electric vehicle began production, using batteries from AESC. In 2014 AESC was the second largest electric vehicle battery manufacturer worldwide (after Panasonic), with 21% of the market. In late 2014 Reuters reported conflict within the Nissan / Renault carmaker alliance over sourcing of battery packs for its Nissan Motor Manufacturing UK and Nissan Smyrna assembly plant (USA) car battery plants due to lack of price competitiveness with