Under the roadmap to carry out the Montreal Protocol on the protection of stratospheric ozone layer by phasing out ozone-depleting substances, Việt Nam will begin managing and eliminating all fluorinated chemicals from 2024 toward reducing consumption by 10 per cent during 2029-2034, 30% during 2035-2039, 50 per cent during 2040-2044 and 80 per cent from 2045.