** Alcoa's shares AA.N drop 3% to $25.7 premarket
** Aluminum producer to buy Australian partner Alumina
AWC.AX in $2.2 bln all-stock deal
** Alcoa CEO William Oplinger says, deal to eliminate
Alumina's annual overhead costs of $7.87 mln and allow combined
company to tap tax advantages
** Alumina shareholders would receive 0.02854 shares of
Alcoa common stock for each share held, giving them a 31% stake
in the combined company
** The deal offers a 13% premium to Alumina's last closing
price of A$1.09 on Monday
** Deal to give the company greater upstream exposure and
simplify its operations, says AA
** Brokerage Jefferies says, deal would simplify AA's
corporate structure and governance
** Deal to improve AA's "vertical integration in aluminum
and give it greater operational flexibility and increased
leverage"- Jefferies
** Brokerage believes the all-stock deal is "best" for AA as
it doesn't "stretch its balance sheet" during a "weak point in
the cycle"
** AA is down 22% YTD as of last close
(Reporting by Johann M Cherian and Pranav Kashyap in Bengaluru)
((johann.mcherian@thomsonreuters.com;))