Apr. 1978 Kuo Chiao Enterprise Co., Ltd. was established with capital of NT $1.6 million .
Mar. 1986 Company name was changed to Yieh Phui Enterprise Co., Ltd.
Dec. 1989 Mr. Jheng-Jie Wang was appointed as president.
1990 The first cold rolling mill, first pickling line, and first continuous pre-painting line were commissioned respectively in Jan., May & Dec.
May 1991 The first coil was processed during commissioning of the first hot-dip
galvanizing line.
Jan. 1992 Yieh Phui became a direct customer of China Steel Corp. for hot-rolled steel coils.
Aug. 1993 Yieh Phui's coated steel sheets obtained JIS MARK Certification.
Apr. 1994 The second hot-dip galvanizing line was commissioned.
Jul. 1995 Yieh Phui officially listed on the Taiwan Stock Exchange.
Aug. 1995 A licensing agreement was signed with BIEC of the USA for the production of GALVALUME® (55% Al/Zn) coated steel.
Aug. 1996 The second cold rolling mill was commissioned.
Feb. 1997 Purchased the second continuous pre-painting line.
May 1997 Yieh Phui obtained ISO 14001 Certification, the first certified steel company in Taiwan.
Jul. 1997 TPM was introduced to Yieh Phui by Japan Institute of Plant Maintenance (JIPM).
Sep. 1997 The third hot-dip galvanizing line was commissioned.
Jul. 1998 Yieh Phui established a strategic alliance with Hon Hai Precision Industry
Company Ltd. and set up a coil center.
Sep. 1998 Yieh Phui pre-painted galvanized steel sheet and PVC plastisol coated steel
sheet passed CNS 6532 incombustible grade 2, for use as an internal finish
material for buildings.
Nov. 1998 The Q.A. Dept. laboratory passed the Chinese National Laboratory Accreditation Certificate of the ROC. (In Sep. 2003, the certification was transferred to Taiwan Accreditation Foundation, TAF.)
Dec. 1998 Yieh Phui obtained OHSAS 18001 Certification, the first certified steel company in Taiwan.
Nov. 1999 Yieh Phui obtained ISO 9001 Certification.
2000 The fourth hot-dip galvanizing line (in Pingtung), third continuous pre-painting line, and third cold rolling mill were commissioned respectively in Feb., May & Aug.
Nov. 2001 Yieh Phui honorably obtained “Award for TPM Excellence ” by JIPM.
Jan. 2002 Yieh Phui established “Sino Leading Technomaterial Co., Ltd.” and holds 100% shares of it.
Oct. 2002 Mr. Lin-Maw Wu was appointed as president.
Mar. 2003 Take over Yieh Hsing’s assets of steel pipes and cold rolling operation.
Apr. 2003 The group’s name was changed to “E-United”.
Dec. 2004 Yieh Phui honorably obtained “Award for Excellence in Consistent TPM” by JIPM.
Aug. 2005 Lien Kang Heavy Industrial Co., Ltd. was incorporated with Yieh Phui Enterprise Co., Ltd. and named “Engineering Business Division”.
Mar. 2006 The Testing and Measurement Laboratory passed the conformity assessment to ISO/IEC 17025 from Taiwan Accreditation Foundation (TAF).
Oct. 2006 Yieh Phui established “Sino Leading Technomaterial Co., Ltd.” was renamed to Yieh Phui(China) Technomaterial Co., Ltd.
Jun. 2007 Yieh Phui obtained QC 080000 IECQ HSPM Certification, the world’ s first certified steel mill that comply with Europe RoHS Directive.
Feb. 2009 Received the factory production control certificate requirements of BC1:2008, Singapore.
Apr. 2009 Yieh Phui obtained Indonesia SNI for coated steel.
Mar. 2010 Yieh Phui honorably obtained “Special Award for TPM Achievement - 2009” by JIPM.
Oct. 2010 Yieh Phui obtained Malaysian MS for coated steel.
Nov. 2010 Yieh Phui obtained SIN for GI & GL from Surabaya, Indonesia.
Dec. 2010 Yieh Phui obtained CFP (Carbon Footprint) and EPD (Environmental Product
Declaration).
Mar. 2011 Pipe Business Division spun off and Yieh Phui established “SHIN YANG STEEL CO., LTD.” and holds 100% shares of it.
Jun. 2011 Yieh Phui acquired CNS 1244/ISO 9001:2008 for hot-dip galvanized steel
sheets and coils from Bureau of Standards, Metrology & Inspection (BSMI),
M.O.E.A., Taiwan.
Jul. 2011 Yieh Phui was awarded "Top 100 Taiwan Brands".
Mar. 2012 Yieh Phui acquired CNS 12681/ISO 9001:2008 for hot-dip 55% Al-Zn coated and prepainted hot-dip galvanized steel coils from BSMI.
Dec. 2012 Yieh Phui was awarded "TWAEO" (Taiwan Authorized Economic Operator) by Customs Administration, Ministry of Finance, Taiwan.
Mar. 2013 Yieh Phui acquired CNS 12681/ISO 9001:2008 for prepainted hot-dip 5% and 55% Al-Zn coated steel coils from BSMI.
Sep. 2013 Yieh Phui acquired "MIT Smile Mark" from BSMI.
Jan. 2014 Yieh Phui acquired "Badge of Accredited Healthy Workplace" from Health Promotion Administration, Ministry of Health andWelfare.
Dec. 2014 Yieh Phui passed and obtained ISO 50001:2011 certification held by SGS Taiwan Limited.
Yieh Phui Anti-Microbial Metallic Coated Steel Sheets passed the nanoMark certification and acquired the certificate from Industrial Development Bureau, M.O.E.A.
Jun. 2015 Yieh Phui was awarded "the National Brand YuShan Award" in 2015 as an outstanding enterprise.
Jan. 2016 Yieh Phui honorably obtained "Advanced Special Award for TPM Achievement - 2015" by JIPM.
Dec. 2018 Talent Quality-Management System (TTQS)-Enterprise Version, Gold.
Dec. 2021 Yieh Phui awarded 2021 National Talent Development Awards by Ministry of Labor.
Jan. 2022 Yieh Phui honorably obtained "Award for World Class TPM Achievement - 2021" by JIPM.
Feb. 2022 Mr. Lin-Maw Wu was promoted as the Vice Chairman, and Mr. Cheng-Wu Chang was appointed to succeed the President.
Nov. 2023 Complied with the requirements of ISO/IEC 27001:2022 Information Security Management System.