IFF have written to you using these details with the instructions on how to complete the survey online (which includes a unique code for your company).
Mae IFF wedi ysgrifennu atoch, gan ddefnyddio’r manylion hyn, gyda chyfarwyddiadau i esbonio sut i gwblhau’r arolwg ar-lein (sy’n cynnwys cod unigryw ar gyfer eich cwmni).