Statement A is correct. The Kigali Amendment, adopted in 2016 in Kigali, Rwanda, is a landmark agreement under the Montreal Protocol on Substances that Deplete the Ozone Layer. Its primary goal is to phase down the production and consumption of Hydrofluorocarbons (HFCs), which are potent greenhouse gases commonly used as replacements for ozone-depleting substances (like CFCs and HCFCs) in refrigeration, air conditioning, aerosols, and foam blowing. Statement B is incorrect. While the Montreal Protocol itself deals with Chlorofluorocarbons (CFCs) and their phase-out (which was largely achieved much earlier), the specific focus of the Kigali Amendment is on HFCs.