Only Dominant Licensee is required to offer a reference offer which is published by IMDA. As the mobile market is deemed to be competitive, no Dominant Licensees have been designated and no reference offers have been offered by mobile operators. See also: IMDA official website, Full Competition in Singapore's Telecommunication Sector, last updated on 03 Jun 2019, https://www.imda.gov.sg/regulations-and-licensing-listing/competition-management/full-competition-in-singapores-telecommunication-sector