Alcoa

(AA) - Get Report

isn't actively seeking to raise its stake in miner

Rio Tinto

( RTP) despite plans by its ally, Chinalco, to increase its holding,

Reuters

reports.

Alcoa and state-owned

Aluminum Corp. of China

(ACH) - Get Report

, or Chinalco, together in February bought 12% of Rio's London shares, or 9% of Rio's total share registry, for about $14 billion in a move that followed a hostile takeover bid for Rio from rival

BHP Billiton

(BHP) - Get Report

, according to

Reuters

.

"We're not actively seeking to increase our stake right now," Alcoa Australia Managing Director Alan Cransberg told

Reuters

after a speech in Melbourne.

Chinalco this week said it plans to lift its stake in Rio to at least 14.99% after BHP abandoned a $68 billion bid to buy Rio Tinto on Tuesday.

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This article was written by a staff member of TheStreet.com.