Cboe Canada: ZEFI $0.73 0.03
| FRA: Y6B €0.41 -0.02
| OTCMKTS:ZEFIF $0.46 0.01
Cboe Canada: ZEFI $0.73 0.03
| FRA: Y6B €0.41 -0.02
| OTCMKTS:ZEFIF $0.46 0.01

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Methane Testing, Quantification, and Monitoring

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