May 4 (Reuters) - BHP Billiton Plc BLT.L
* Federal Public Prosecution Service has commenced proceedings against also Vale and BHP billiton brasil ltda (bhp billiton brasil) for BRL 155 billion
* BHP Billiton has not received formal notice of claim.
* Federal Public Prosecution Service has announced that it has commenced proceedings against Samarco Mineração S.A Source text for Eikon: Further company coverage: BLT.L