China issues mandatory standard that sets energy consumption limits for production of caustic soda, PVC, chloromethanes 
On April 29, 2024, the Chinese government published a mandatory national standard called the Norm of Energy Consumption per Unit Production of Caustic Soda, PVC, Methane Chloride, which will come into effect May 1, 2025.
This standard will replace the Norm of Energy Consumption per Unit Product of Caustic Soda (GB 21257-2014) and the Norm of Energy Consumption per Unit Product of Polyvinyl Chloride Resin (GB 30527-2014), and introduce energy consumption limits for chloromethanes (i.e., chloromethane, dichloromethane, chloroform and carbon tetrachloride) production.
As such, the standard sets out grade-based limits on energy consumption per unit of production for caustic soda (i.e., sodium hydroxide), polyvinyl chloride (PVC) and chloromethanes, along with related requirements and energy consumption calculation scopes.
