MEXICO CITY, Nov 19 (Reuters) - Mexico's Alpek will hold

an extraordinary shareholders' meeting on Nov. 25 to vote on the

proposed merger with its parent company, Controladora Alpek, the

company said in a filing on Wednesday.

* The meeting is scheduled for 12:00 p.m. local time (1800

GMT) on

November 25, Alpek said in a statement.

* Shareholders must register their shares through

their

custodian to be eligible to vote.

* The company requires a 75% quorum of shareholders

to

convene the meeting.

* Alpek said it expects the transaction to benefit

all

shareholders and boost long-term value.