Who supplies refrigerant R29?

Refrigerant R29, also known as trichlorofluoromethane (CFC-29 or CFC-113), is not commonly used today due to its ozone-depleting properties. However, it was historically supplied by major chemical companies such as DuPont and Honeywell. Due to environmental regulations like the Montreal Protocol, the production and use of CFCs have been phased out in many countries, leading to a decrease in suppliers. For current applications, alternatives such as hydrofluorocarbons (HFCs) or natural refrigerants are more widely used.