EU mergers and takeovers (March 15)

BRUSSELS, March 15 (Reuters) - The following are mergers under review by the European Commission and a brief guide to the EU merger process:

APPROVALS AND WITHDRAWALS

-- U.S. wireless carrier AT&T (Sao Paolo: ATTB34.SA - news) to acquire U.S. broadcaster and TV studio Time Warner (Frankfurt: A0RGAY - news) (approved March 15)

NEW LISTINGS

-- French utility Engie (LSE: 0LD0.L - news) to acquire UK property developer Keepmoat Regeneration HOldings (notified March 14/deadline April 21/simplified)

-- Private equity (IOB: 0QLS.IL - news) firm 3i, Dutch asset manager APG (Shenzhen: 002284.SZ - news) and Danish pension fund ATP to acquire a portfolio of European infrastructure companies from EISER (notified March 10/April 19/simplified)

-- Megatrend European Holdings, which is part of property investment company TH Real Estate, and German insurer Allianz (Swiss: ALV-EUR.SW - news) to jointly acquire Finnish company NRF which owns Helsinki-based Kamppi Shopping Centre (notified March 9/deadline April 18)

EXTENSIONS AND OTHER CHANGES

None

FIRST (Other OTC: FSTC - news) -STAGE REVIEWS BY DEADLINE

MARCH 16

-- Australian investment bank Macquarie Group (Dusseldorf: 4M4.DU - news) and the UK's National Grid (LSE: NG.L - news) to acquire joint control of National Grid's gas distribution business (notified Feb. 9/deadline March 16)

MARCH 20

-- General Electric Co to acquire rotor blade maker LM Wind Power Holding