The partnership of 一汽 (First Automobile Works) and 丰田 (Toyota) was agreed in 2002, and its main plants are in 天津. It builds the Corolla (卡罗拉) and the RAV4 (荣放) for China. Toyota's other Chinese partner is 广汽丰田, in Guangzhou.
mistakes
一 here means 'First', as in First Automobile Works, so it keeps its first tone: Yīqì, not yíqì.