在HDB的EC Eligibility網頁上：
under Property Ownership: You have not bought a new HDB/ DBSS flat or EC, or received a CPF Housing Grant before; or, have only bought 1 of these properties/ received 1 CPF Housing Grant thus far.
and under Can I get a new EC if I used to/ still own an HDB flat, DBSS flat, or EC? in the bottom: HDB resale flat bought using a CPF Housing Grant (only applies to first-timer applicants)
我一直認為是說公民買了resale的HDB，可以不用賣，還有資格申請EC，只是不清楚這個“using a CPF Housing Grant”是不是必須 ，而且只能一個
