BRUSSELS, July 23 (Reuters) - The following are mergers under review by the European Commission and a brief guide to the EU merger process:
-- Private equity firm Blackstone Group to buy property developer Multi Corp (approved July 23)
-- Dubai state-owned aluminium producer Dubal Aluminium, which is a subsidiary of the Investment Corp of Dubai, and Abu Dhabi state-owned Emirates Aluminium, which is owned by Mubadala Development Company, to merge (approved July 23)
-- U.S. medical product maker Baxter International Inc to buy Swedish kidney dialysis product company Gambro (approved July 22)
-- Swiss industrial group ABB to buy U.S. solar energy company Power-One Inc (approved July 22)
-- Canadian pension funds OMERS and AimCo to acquire joint control of European cinema operator Vue Entertainment International Ltd (notified June 21/deadline July 26)
-- Investment bank Goldman Sachs and financial services company Gavea Investimentos to acquire joint control of Latin American telecoms services company Cell Site Solutions Cessao de Infraestruturas S.A. (notified June 24/deadline July 29/simplified)
-- Private equity fund Cinven to buy German ceramic products maker CeramTtec from U.S. chemicals company Rockwood Holdings (notified June 27/deadline Aug. 1/simplified)
-- U.S. grain trader Archer Daniels Midland Co to buy Australian grain handler GrainCorp Ltd (notified June 28/deadline Aug. 2/simplified)
-- Norwegian sovereign wealth fund Norges Bank to acquire a joint control of French property developer SCI Pasquier which is now solely owned by Italian insurer Generali (notified July 1/deadline Aug. 5/simplified)
-- Canada's Valeant Pharmaceuticals International to buy eye health products maker Bausch & Lomb Holdings Inc from private equity firm Warburg Pincus LLC (notified July 1/deadline Aug. 5)
-- US Airways Group and American Airlines to merge (notified June 18/deadline extended to Aug. 6 from July 23 after the airlines offered concessions)
-- Buyout firm BC Partners to buy German publisher Springer Science+Business Media from Swedish private equity fund EQT and Government of Singapore Investment Corp (notified July 3/deadline Aug 7/simplified)
-- Private equity firm Bain Capital to buy home products retailer Maisons du Monde (notified Sept 4/deadline Aug. 8/simplified)
-- Private equity firm Clayton, Dubilier & Rice LLC to acquire online used vehicle purchasing services company which owns car seller "We buy any car" (notified July 4/deadline Aug. 8)
-- Spanish telecoms provider Telefonica, Spanish lender Caixabank and Spain's Banco Santander to set up an advertising services joint venture (notified July 11/deadline Aug. 16)
-- French paper products company Antalis to acquire U.S. printer and copier company Xerox's western Europe paper distribution business (notified July 11/deadline Aug. 16)
-- Hong Kong-based Cheung Kong (Holdings) Ltd, Hutchison Whampao Ltd's Cheung Kong Infrastructure Holdings Ltd, Power Assets Holdings Ltd and Li Ka Shing Foundation Ltd to buy Dutch waste processing firm RAV Water Treatment I B.V. (notified July 12/deadline Aug. 19/simplified)
-- Private equity firm The Carlyle Group LP to buy packaging products supplier Chesapeake Holdings S.A.R.L. (notified July 16/deadline Aug. 21/simplified)
-- Greek carrier Aegean Airlines to buy Olympic Air (notified Feb. 28/deadline extended for the second time to Sept. 3 from April 23 after the Commission opened an in-depth investigation)
-- Swedish refiner Nynas to purchase certain assets from Royal Dutch Shell's Harburg refinery (notified Feb. 19/deadline extended for the second time to Sept. 6 from Aug. 8)
The European Commission has 25 working days after a deal is filed for a first-stage review. It may extend that by 10 working days to 35 working days, to consider either a company's proposed remedies or an EU member state's request to handle the case.
Most mergers win approval but occasionally the Commission opens a detailed second-stage investigation for up to 90 additional working days, which it may extend to 105 working days.
Under the simplified procedure, the Commission announces the clearance of uncontroversial first-stage mergers without giving any reason for its decision. Cases may be reclassified as non-simplified -- that is, ordinary first-stage reviews -- until they are approved.