Belgian transmission system operator (TSO) Elia has decided to exercise its pre-emption right and increase its share in Eurogrid, the holding company above its German peer 50Hertz, to 80% from 60% previously owned.

With the transaction, Elia in effect prevents a sale of a 20% stake to State Grid of China Corporation (SGCC), which had met resistance in Germany as 50Hertz is considered critical infrastructure.