15cb

I have to issue a 15CB certificate wherein invoice has been issued by a company in Singapore and I have to remit funds to another company incorporated in USA for which I have the TRC, No PE declaration and 10F. Money eventually is going to Singapore only but the account is of its holding company probably which is incorporated in USA. Here which treated should I refer to? With Singapore or USA? Service is provided by the Singaporean company but In the invoice it’s given transfer funds to US incorporated company.