Steelmaker Corus has lost its place in the FTSE 100 following the latest reshuffle of the index.
Corus' share price has fallen recently
Packaging specialist Bunzl was also relegated from the UK's top share index following the FTSE committee's latest meeting.
The two companies have been replaced by plasterboard maker BPB and property company Hammerson.
The latest changes will come into effect after the close of trade on Friday 17 June.
Inclusion in the FTSE 100 is seen as a mark of prestige and, more often than not, raises a company's profile among investors.
Corus' share price has been hit in recent months by worries over prospects for metals demand. By the close of trade on Tuesday - the point at which firms were assessed for the latest reshuffle - it was ranked 113th among the FTSE list of the largest listed companies.
Bunzl's demotion had been expected after the firm shrank in size following the spin off of its Filtrona cigarette filter division.