I te tau 2020, ko te kaha whakaputa PVC i te Tonga-mā-rāwhiti o Āhia ka eke ki te 4% o te kaha whakaputa PVC o te ao, ko te kaha whakaputa matua ka ahu mai i Thailand me Indonesia. Ko te kaha whakaputa o ēnei whenua e rua ka eke ki te 76% o te kaha whakaputa katoa i te Tonga-mā-rāwhiti o Āhia. E matapaetia ana i te tau 2023, ka eke te kai PVC i te Tonga-mā-rāwhiti o Āhia ki te 3.1 miriona tana. I roto i ngā tau e rima kua pahure ake nei, kua tino piki ake te kawemai o te PVC i te Tonga-mā-rāwhiti o Āhia, mai i te ūnga kaweake kupenga ki te ūnga kawemai kupenga. E matapaetia ana ka mau tonu te rohe kawemai kupenga a muri ake nei.
