BRUSSELS, Sept 24 (Reuters) - The following are mergers under...

BRUSSELS, Sept 24 (Reuters) - The following are mergers under review by the European Commission and a brief guide to the EU merger proces

APPROVALS AND WITHDRAWALS -- German project group Steag and German engineering company Siemens SIEGn.DE take joint control of a power plan in Herne, western Germany (approved Sept. 21)

-- German asphalt maker Deutsche Asphalt, which is a subsidiary of Austrian construction company Strabag STRV.VI , and German road construction company Bunte to set up a joint venture (approved Sept. 21)

-- Germany's Vossloh and Austria's Rhomberg Sersa Rail Holding to set up a railway technology joint venture (approved Sept. 21)

-- Private equity firm EQT Fund Management to acquire Luxembourg specialty chemicals and food ingredients distributor Azelis AZELI.UL (approved Sept. 21)

NEW LISTINGS -- China Huaxin Post and Telecom Technologies Co., Ltd to establish a joint venture with Netherlands company Juniper Networks International B.V. JNPR.N to research, manufacture and sell network switches, routers and security products in China (notified Sept. 21/deadline Oct. 26/simplified)

-- Private equity fund EQT Fund Management (in its capacity as alternative investment fund manager of the relevant EQT fund) to acquire, through a holding vehicle, sole control of French water and wastewater management company Holding d’Infrastructures des Métiers de l’Environnement S.A.S., which indirectly holds 100 percent of the shares and voting rights of Saur S.A.S. (notified Sept. 21/deadline Oct. 26/simplified)

-- Japanese company Sony Corp. 6758.T to buy majority control of UK music publishing company EMI Music Publishing (notified Sept. 21/deadline Oct. 26)

-- French investment bank Bpifrance to buy joint control of Vallourec Umbilicals with French energy company Vallourec Tubes (notified Sept. 20/deadline Oct. 25/simplified)

-- U.S. private equity investor Advent International Corporation to buy shares to gain sole control of Irish telecommunications, power and transport company KN Group (notified Sept. 20/deadline Oct. 25/simplified)

-- Hong Kong companies CK Asset Holdings Limited 1113.HK , infrastructure company CK Infrastructure Holdings Limited 1038.HK and energy investment company Power Assets Holdings Limited 0006.HK to buy Australian energy infrastructure company APA (APA) (notified Sept. 19/deadline Oct. 24/simplified)

-- Fund managed by private equity firm Bain Capital Investors LLC to buy Italian specialty chemicals company Italmatch Chemicals (notified Sept. 19/deadline Oct. 24/simplified)

EXTENSIONS AND OTHER CHANGES None

FIRST-STAGE REVIEWS BY DEADLINE

SEPT 27 -- U.S. planemaker Boeing BA.N and French aerospace company Safran SAF.PA to set up a joint venture to make and service aircraft auxiliary power units (notified Aug. 23/deadline Sept. 27)

SEPT 28 -- Private equity firm KKR KKR.N and French telecoms provider Altice NUMCF.PK to acquire joint control of Altice's French subsidiary SFR Filiale (notified Aug. 24/deadline Sept. 28/simplified)

OCT 3 -- U.S. plane maker Boeing BA.N to acquire aerospace parts company KLX KLXI.O (notified Aug. 29/deadline Oct. 3)

OCT 4 -- Private equity fund Lone Star to acquire French company Imerys' IMTP.PA roof tiles business (notified Aug. 30/deadline Oct. 4/simplified)

OCT 5 -- Boeing BA.N and automotive seat maker Adient ADNT.N to form a joint venture to make airline seats (notified Aug. 31/deadline Oct. 5)

-- Japanese beverages and pharmaceutical group Kirin Holdings 2503.T and Japanese trading house Mitsui 8031.T to acquire joint control of nutritional supplements company Thorne Holding Corp (notified Aug. 31/deadline Oct. 5/simplified)

OCT 8 -- Swedish mobile operato Tele2 TEL2b.ST to acquire Swedish cable TV company Com Hem (notified Sept. 3/deadline Oct. 8)

-- Chinese conglomerate CITIC Group to require a majority stake in Czech holding group European Bridge Travel, which controls travel services companies (notified Sept. 3/deadline Oct. 8/simplified)

OCT 9 -- Alphabet's GOOGL.O Verily and ResMed RMD.N to set up a joint venture (notified Sept. 4/deadline Oct. 9/simplified)

-- Canadian auto parts maker Magna MG.TO to acquire Italian lighting products maker Olsa (notified Sept. 4/deadline Oct. 9/simplified)

OCT 10 -- U.S. investment firm KKR KKR.N to acquire joint control over Singapore property website Property Guru (notified Sept. 5/deadline Oct. 10/simplified)

OCT 11 -- Private investment firm SK Capital Partners to acquire U.S. specialty chemical company Schenectady International (notified Sept. 6/deadline Oct. 11)

OCT 12

-- Business process services company Synnex Corp SNX.N to acquire call center operator Convergys Corp CVG.N (notified Sept. 7/deadline Oct. 12/simplified)

-- Buy-out firm Cinven to acquire sole control of Italian insurer Generali Lebensversicherung (notified Sept. 7/deadline Oct. 12/simplified)

-- German gaming and gambling company Gauselmann GAUS.UL to take a 33 percent stake and joint control of casino operator Spielbank Mainz (notified Sept. 7/ deadline Oct. 12/simplified)

-- Investment company Bregal to acquire travel firm Trendtours Touristik (notified Sept. 7/deadline Oct. 12/simplified)

OCT 15 -- U.S. pet food maker Mars Petcare to acquire European veterinary business Anicura (notified Sept. 10/deadline Oct. 15)

-- Qatar Petroleum QATPE.UL to acquire a 30 percent stake in two of Exxon Mobil's XOM.N affiliates in Argentina (notified Sept. 10/deadline Oct. 15/simplified)

OCT 16 -- French equity firm PAI Partners to acquire board game publisher Asmodee (notified Sept. 11/deadline Oct. 16/simplified)

-- Japanese industrial gas supplier Taiyo Nippon Sanso 4091.T to acquire U.S. industrial gas company Praxair's PX.N European business (notified Sept. 11/deadline Oct. 16)

OCT 17 -- Semiconductor company Broadcom AVGO.O to acquire technology company CA CA.O (notified Sept. 12/deadline Oct. 17/simplified)

-- 3i Infrastructure 3IN.L and Danish pension company ATP to invest in telecoms operator Tampnet (notitied Sept. 12/deadline Oct. 17/simplified)

-- Private equity company the Carlyle Group CG.O to acquire interest in U.S. broadcast services company NEP Group NEPG.N (notified Sept. 12/deadline Oct. 17/simplified)

OCT 18 -- Morgan Stanley Infrastructure MS.N to acquire German rail logistics group VTG VT9G.DE (notified Sept. 13/deadline Oct. 18/simplified)

OCT 19 -- Italian and U.S.-based private equity firms the Carlyle Group CG.O and Investindustrial to acquire furniture maker B&B Italia and lighting companies Flos and Louis Poulsen (notified Sept. 14/deadline Oct. 19/simplified)

-- German industrial gas company Messer Group and private equity group CVC (CVC) to acquire certain assets from German chemical company Linde Group (notified Sept. 14/deadline Oct. 19/simplified)

-- U.S. software company Microsoft Corp MSFT.O to buy privately held coding website GitHub Inc (notified Sept. 14/deadline Oct. 19)

-- Walt Disney Co DIS.N to buy the bulk of Twenty-First Century Fox Inc's FOXA.O film and television assets (notified Sept. 14/deadline Oct. 19)

OCT 22 -- U.S. computer and printer maker HP Inc HPQ.N to buy U.K.-based office equipment dealer Apogee Corp (notified Sept. 17/deadline Oct. 22)

-- Private equity fund Lone Star to buy Spanish company CaixaBank's CABK.MC real estate assets (notified Sept. 17/deadline Oct. 22)

-- Shipping group CMA CGM CMACG.UL to acquire shipping and logistics company Container Finance's holdings in Multi-Link Terminals Ltd and CD Holding Oy (notified Sept. 17/deadline Oct. 22)

-- U.S. aircraft parts maker Spirit Aerosystems Holdings Inc SPR.N to acquire EU-based supplier Asco Industries NV (notified Sept. 17/deadline Oct. 22)

-- German luxury carmakers Daimler DAIGn.DE and BMW BMWG.DE to launch a car-sharing joint venture (notified Sept. 17/deadline Oct. 22)

OCT 23 -- U.S. travel and restaurent reservation and related services company Booking Holdings Inc BKNG.O to buy Australian hotel metasearch site HotelsCombined (notified Sept. 18/deadline Oct. 23)

OCT 25 -- U.S. private equity investor Bain Capital Private Equity to buy UK insurance service company esure Group ESUR.L (notified Sept. 20/deadline Oct. 25/simplified)

NOV 30 -- Deutsche Telekom DTEGn.DE to acquire Swedish peer Tele2's TEL2b.ST Dutch unit and merge it with its Dutch business T-Mobile Nederland (notified May 2/deadline Nov. 30 after deadline suspension ended Aug. 6)

DEC 13 -- Copper company KME, which is part of Intek Group IKG.MI , to acquire German peer MKM Mansfelder Kupfer and Messing GmbH (notified June 4/deadline Dec. 13)

DEC 18 -- German company BASF BASFn.DE to acquire Belgian chemicals company Solvay's SOLB.BR worldwide polyamide business (notified May 22/deadline Dec. 18)

JAN 3 -- German copper products maker Wieland-Werke to acquire German copper smelter Aurubis' NAFG.DE flat rolled products unit Products Schwermetall (notified June 13/deadline Jan. 3)

JAN 8 -- French aerospace and defence group Thales TCFP.PA to acquire Franco-Dutch chipmaker Gemalto GTO.AS (notified June 18/deadline Jan. 8)

JAN 28 -- Siemens SIEGn.DE and Alstom ALSO.PA to merge their railway operations (notified June 8/deadline Jan. 28)

GUIDE TO EU MERGER PROCESS DEADLINES: 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.

SIMPLIFIED: 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.