The tema electric car company was established in 1995 with its headquarters in the north china economic technology development zone in tianjin, china, with a total area of 48,000 square metres and a total construction area of more than 27,000 square metres. It has become one of the most sophisticated, quality-controlled bicycles and electric vehicle production bases in the chinese bicycle industry. Tema electric cars has iso9001; 2000 quality management system (qms) certification and japan sg certification, producing products that meet japanese jis standards and meet the more stringent quality requirements of baa, japan bicycle association. In 2007, the tema bike was awarded the title "specific gas mark". Sales agencies, business partners and a large number of foreign clients from all product companies sell their products to large parts of mainland china. In addition to gemma's own brand of "gamma", it produces brand-named products such as maroon, piko, elle, jeep, wimbledon, daimle...