Tight Access and Data Doubts Cloud China’s Carbon Market

  • Emissions system has seen trading volumes tumble since debut
  • Small polluters have been unable to participate so far: people
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China’s national carbon market, seen as a key tool to help the world’s top polluter curb emissions, is being hampered by limited early access for small companies and doubts over data quality, according to people familiar with the details.

Only about a dozen large companies were given logins to allow them to participate as the market opened earlier this month, and access is being extended slowly to the rest of about 2,200 power firms covered by the market’s first stage, according to the people, who requested anonymity to discuss the issues.