2022.12         The 20th anniversary of the establishment, towards the FDA_21CFR process filter core of biotech pharmaceuticals and so on.

2022.04         Update the official website; adopt RWD responsive website system.

2021.12         Update the corporate image of C.I.S., focusing on the field of "liquid & gas" precision filtration proposals in various industries.

2020.05         Japan PVDC fiber filter SaranLock sales.

2019.09         Sales of Removal metal ions filter in Japan.

2019.04         Passed JFRL Japan Food Analysis Center (Endotoxin TEST) certification (YAMASHIN XMWP filter).

2019.04         Passed PIDC (NSF/ANSI42) fine particle weight reduction certification (YAMASHIN XMWP filter).

2018.02         Passed PIC/S (ASTM F838-05) certification (FUJIFILM AstroPore filter).

2017.11         Transformed to domestic sales; and moved from the office in the Industrial and Commercial District to the
                         14th Floor, No. 125-6, Anxing Road, Xindian District, New Taipei City.

2017.08          Invited to join JNC Filter distributor in Taiwan.

2016.12         Officially become the distributor of FUJIFILM AstroPore filter in Taiwan.

2015.04         Officially became a YAMASHIN dealer in Taiwan.

2012.12.18   The 10th anniversary of Chengfeng.

2011.06         Participated in the 7th Turkey REW Exhibition.

2010.06         Participated in AQUATECH CHINA 2010 China Shanghai Water Show and sold Taiwan-made PP filters to Fujian Province.

2010.04         Participated in the 20th Japan FINETECH JAPAN exhibition for the second time.

                         And published ultra-precise internal and external 400-degree polishing and grinding XES series filters for food processing industries
                         such as semiconductor and steam sterilization.

2010.03         Consolidated the delivery warehouse and business, and the office relocated to
                         3F-3, No. 66, Section 2, Jianguo North Road, Zhongshan District, Taipei City.

2009.04         Participated in the 19th FINETECH JAPAN exhibition in Tokyo, Japan.

2008.06         Participated in the 2008 Taiwan Flat Panel Display Exhibition.

2008.01         Exported industrial-grade SUS304 DL large flow multi-pack filter and sold it to Japan.
                         Announced ADK series filter for ultra-high flow cleaning and XBA series filter element for matching.

2007.12         The Japanese filter for developer filtration was officially in Taiwan.

2007.10         Participated in the 10th Japan Kansai Machinery Elements Technology Exhibition; and announced the flash tail, double wings,
                         and composite screws at the same time
                         Participated in the 8th TPCA Taipei World Trade Show; planned to act as an agent for imported filter elements of micron filtration grade.

2007.05         Exported industrial grade (Big Blue Housing) DOB filter barrel and sold to Japan.
 
2007.01         Exported industrial-grade SUS316 BFH bag filter and sold to Japan.

2006.12.18   The 4th anniversary of establishment, and the capital increased to NT$7 million.

2006.10         Participated in the 7th PCB exhibition in Taipei; announced the Japanese-made activated carbon filter.
                         Exported aluminum hammer nails for construction and sold to Japan.

2006.01         Exported industrial-grade SUS316 TKH filter cartridge and sold to Japan.
                         Exported industrial PP fiber depth filters and sold them to Japan.

2005.10         Exported self-tapping screws for construction and sold to Japan.

2005.08.10   The office moved to Commercial Building 2, 8th Floor, No. 120, Section 1, Nanjing East Road, Zhongshan District, Taipei City.

2005.08         Exported industrial long nuts to Japan.

2004.05         Imported Japanese industrial FUTAMURA activated carbon filter and sold it to Taiwan.

2003.01         Exported patented double-blade screws for building materials and sold them to Japan.

2002.12.18   Set up a temporary office on Fuguo Road, Shilin District, Taipei City, with a capital of NTD3 million.