If you are looking for a standalone posting module for Negotiated Procurement Adjacent/Contiguous, there is none.
You can find the module to post the details of NP Adjacent/Contiguous in PhilGEPS posting after you have UPDATED your posting of the NTP+Contract in the procurement originally awarded through competitive bidding.
In accordance with Sec. 54.3 of the IRR, the NOA, Contract, and NTP shall be posted in the PhilGEPS for information purposes.