Cboe Canada: ZEFI $0.69 0.01
| FRA: Y6B €0.39 -0.03
| OTCMKTS:ZEFIF $0.47 -0.01
Cboe Canada: ZEFI $0.69 0.01
| FRA: Y6B €0.39 -0.03
| OTCMKTS:ZEFIF $0.47 -0.01

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Methane Testing, Quantification, and Monitoring

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