Complex sentence: Groupe Eurotunnel S.A. manages and operates the Channel Tunnel between Britain and France including the operates the vehicle shuttle services, and earns revenue on other trains (DB Schenker freight and Eurostar passenger) through the tunnel.
Split into simpler sentences: Groupe Eurotunnel S.A. manages and operates the Channel Tunnel between Britain and France. The Company operates the car shuttle services and earns revenue on other trains (freight by DB Schenker and passenger services by Eurostar) passing through the tunnel.