Taiwan's Hon Hai Precision Industry Co Ltd on Monday said it has partnered Chinese social networker Tencent Holdings Ltd to develop opportunities related to electric vehicles, marking the latest tech foray into "smart" cars. Hon Hai, WeChat operator Tencent and luxury car dealer China Harmony Auto Holding Ltd signed an agreement to work together in the Chinese city of Zhengzhou, Henan province, the contract manufacturer said without detailing specifics.