Qingdao Sirui Commodity Co. Ltd, established in 2010, is a large-scale production enterprise which engages in research and development of self-heating products and manufacture, marketing and export of summer mosquito repellent stickers, mosquito repellent ring, mosquito repellent sprays, craft cup, with annual output value of RMB 50 million. The company hire the expert from Japan and Germany as technical consultant to ensure the products reach world-class level. In 2007, 6 automatic production lines were imported from Japan and Germany and 5S management was firstly applied in the country to ensure the products to meet clients' satisfaction.