Groupe Eurotunnel SA (OTC: GRPTF) swung to a profit in 2011 and announced its plans to double dividend to EUR0.08 a share this year. Eurotunnel posted a net profit of EUR11 million, versus a net loss of EUR57 million, in 2010. Its operating profit surged 43% to EUR272 million. Its revenue gained 15% to EUR845 million.