The company was established in 2003
![2003 2003](https://www.yitong-filter.com/data/watermark/20230418/643df73664d30456_344.webp)
Began to represent domestic and foreign well-knownbrands in 2004
![2004 2004](https://www.yitong-filter.com/data/watermark/20230327/642102db54696456_344.webp)
ln 2005, officially became the supplier of Shijiazhuang CSPC Group
![2005 2005](https://www.yitong-filter.com/data/watermark/20230418/643df024646cb456_344.webp)
Established a factory in 2009 with processing trade capabilities
![2009 2009](https://www.yitong-filter.com/data/watermark/20230418/643def913eeab456_344.webp)
Became a qualified supplier of Sinopec in 2012
![2012 2012](https://www.yitong-filter.com/data/watermark/20230418/643def5a24937456_344.webp)
Became a CNOOC supplier in 2015
![2015 2015](https://www.yitong-filter.com/data/watermark/20230418/643deeadd1a8e456_344.webp)
In 2017, it was rated as an excellent supplier of NorthChina Pharmaceutical
![2017 2017](https://www.yitong-filter.com/data/watermark/20230418/643deefc84627456_344.webp)
In 2018, the company prepares for a new factory, covering an area of 20 acres
![2018 2018](https://www.yitong-filter.com/data/watermark/20230418/643df0689e92c456_344.webp)