(Reuters) -Eiffage expects earnings across its building and concessions businesses to grow further this year, the French company said on Wednesday as it posted an annual 2021 profit that surged past its pre-pandemic level. The group said it was confident earnings would rise again in 2022 and had better visibility for the coming years off the back of several projects wins linked to the green energy transition. Eiffage expects its contracting business – which builds roads, power infrastructure and residential blocks – to improve slightly this year. Its concessions activities should meanwhile see…