Our Mission Statement

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Contact Us

Opening Hours : Mon – Sat
08:00 – 17:00
Official Line : 

Contact : 034-854444
[email protected]

About Us

Business Performance

S P Metalwork Co.,Ltd. was founded by Mr.Sompong Pongkriangyos on January 13, 1995 provided metal casting service in varieties of materials such as Grey iron, Ductile iron, Steel and special alloys, which focusing on customer’s requirement (OEM Part). Then expanded our business into manufacturing waterworks equipment, Pipe fittings and valves under SP trademark currently.

The company’s plant facilitated in Samut Sakhon province which are in advance technology in both Casting and Machining processes. Capacity over 1,000 tons/month is installed as well as high accuracy machines that support various kinds of metal casting in high quality product. Every product shall meet quality policy based on international standard regulations.
July, 2019, we successfully completed the audit to the quality management system, ISO9001:2015 certified by SGS (Thailand) Ltd.

On top of that, we also have a policy for safety health and environmental procedures alongside with Human resources development to improve our quality standard.

“In relation with our promise that we are committed to produce, distribute and provide high-quality product and services

with continuous improvement for our customers’ satisfaction at highest level.”


S P Metalwork Co., Ltd.

 Company Name

S P Metalwork Co., Ltd.


30/1, 30/21, 30/25, 30/67 Khok Krabue, Mueang Samut Sakhon, Samut Sakhon 74000 Thailand

 Industry Type

Metal Casting

 Date of Establishment

January 13, 1995


24,000 square meters

Amount of Employee

300 employees


Grey iron and Ductile iron products for pipe fittings, such as Valves, Bends, Tees, Flanges, Copper Alloy Gate Valve and OEM products


Metropolitan Waterworks Authority (MWA), Provincial Waterworks Authority (PWA), Royal Irrigation Department (RID), Metropolitan Electricity Authority (MEA)


For 3 decades of our strength and pride


  • Established on January 13, 1995


  • Expanded business into cast iron pipe fittings
  • Certified TIS 918-2535


  • Certified TIS 256-2540 / TIS 382-2531 /
    TIS 383-2529 / TIS 1368-2539
  • Certified ISO 9001


  • Certified TIS 432-2529


  • Increased registered capital to be 100 million baht


  • Certified TIS 2253-2548


  • Expanded business into bronze gate valve casting
  • Certified TIS 431-2529
  • Certified ISO 9001:2015


  • The development of automated casting process.


  • Increased registered capital to be 200 million baht

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