Cboe Canada: ZEFI $0.49 -0.02
| FRA: Y6B €0.27 0.02
| OTCMKTS:ZEFIF $0.36 0.04
Cboe Canada: ZEFI $0.49 -0.02
| FRA: Y6B €0.27 0.02
| OTCMKTS:ZEFIF $0.36 0.04

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Methane Testing, Quantification, and Monitoring

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