No, the government procurement rules described above apply to technology as well as other goods and services.
As mentioned in Section 1(d) above, defence procurement is treated slightly differently. Further, The Defence Science and Technology Agency of Singapore has published an article "Contracting by MINDEF and DSTA - Understanding the Law and Practice of Defence Procurement in Singapore" which sets out the law and practice of defence procurement in Singapore.
Public healthcare institutions in Singapore have been restructured to form part of government-owned corporations rather than operating as part of the government.
Singapore Health Services Pte Ltd ("Singhealth"), Singapore' largest group of public healthcare institutions, operates a procurement system separate from the processes on the government's GeBIZ platform. Information on Singhealth's processes can be found on (https://www.singhealth.com.sg/AboutSingHealth/GroupProcurement/FAQ/Pages/Home.aspx).
Likewise, the National Healthcare Group (another major group of public healthcare institutions) operates a procurement system separate from the government's GeBIZ platform, details of which can be found on https://www.gpo.nhg.com.sg/introduction.asp).
Singapore's electricity and energy market is liberalised. The sale and purchase of electricity (and other ancillary services required to maintain the secure operation of the power system) is governed by the rules and processes of the Energy Market Company Pte Ltd (the wholesale market operator of the National Electricity Market of Singapore (NEMS)) and regulations and policies of the Energy Market Authority.