News & Announcements
Monthly Maintenance Monthly Maintenance is scheduled on the first Saturday of every month. Please click here for the schedule.

Supplier Registration

To register as SIAEC Supplier, please complete the Online Supplier Registration Form. For any queries or technical support, please contact the SESAMi Customer Care Team.


Suppliers must be registered with SESAMi to be able to download SIAEC RFQ/Tender documents. All submission of quotes and proposals will be done electronically via SIAEC e-Sourcing Portal through SESAMi.

SIAEC Suppliers’ Code of Conduct

SIA Engineering Company Limited is committed to high standards of ethics and business conduct. We require our suppliers to not only comply with laws and regulations, but also integrate principles of sustainable development into all areas of their business. To this end, the Company's Code of Conduct sets out a non-exhaustive list of ethical and business conduct requirements that we require all our suppliers to comply with.

Please click here for SIAEC Suppliers’ Code of Conduct.

Contact Us

SESAMI (Singapore) Pte. Ltd.
1 Changi Business Park Crescent
#02-17 Plaza 8 @ CBP, Podium C
Singapore 486025
P: +(65) 6333-1188 (Select Option 2)
E: customercare@sesami.com
Monday - Friday: 9am to 6pm