Since 2001, E&J Co., Ltd. has been recognized as a leader in the brand cultivation market in Japan, helping brands from design, manufacturing, import, export, marketing, and sales. E&J has nurtured over one hundred fashion brands, such as "Snidel" and "Earth Music & Ecology." In 2014, E&J Co., Ltd. entered a business alliance with one of the world's largest trading companies Marubeni Corporation to achieve a much wider impact and merged the OEM and ODM business with Marubeni Fashion Link Ltd which expanding partnerships with more than 300 brands in Japan, including UNIQLO which shared the majority of the Japanese market.

Since 2010, E&J group has helped many Japanese brands enter the market in China. To support the business development of clients in China, E&J team renovated and redesigned the Shanghai Xujiahui Metro City Mall in 2010, transforming its B1F part into a Japanese style street, which is also named "GOBANGAI '' (meaning Fifth Avenue)  in Japanese. E&J team helped dozens of clients open their flagship stores. Since 2012, E&J team has established and streamlined the entry process, leading many Japanese fashion brands into Chinese market.

In 2013, E&J opened a gift shop and established YOMMY brand in Shanghai. Then in 2015, E&J team established Shanghai TOPSUN International Trading Co., Ltd. to focus on its e-commerce business in China. In 2018, YOMMY's technology division began to help clients develop mobile applications.

In 2016, E&J established TOPSUN (S) PTE LTD, a trading company in Singapore. It develops the factories in Southeast Asia, helps clients develop Southeast Asia markets, and conducts tripartite trade.