MKS Commences Expansion of Guangzhou, China Equipment Manufacturing Facility

ANDOVER, Mass., Nov. 02, 2026 (GLOBE NEWSWIRE) — MKS I c. (NASDAQ: MKSI), (“MKS”) a global p ovide of e abli g tech ologies that t a sfo m ou wo ld, today a ou ced the comme ceme t of the expa sio of its Atotech equipme t ma ufactu i g site i Gua gzhou, Chi a. Lau ched i Ju e 2026, the expa sio is ow expected to be completed i the thi d qua te of 2027.

With the USD 25 millio i vestme t, MKS will expa d the facility f om 20,000 m² to 50,000 m² a d pla s to add 30 state-of-the-a t machi i g a d fab icatio systems, c eate ove 300 employme t oppo tu ities, a d substa tially i c ease a ual sustai able p oductio capacity.

The expa sio add esses sig ifica t dema d fo plati g equipme t f om the Gua gzhou facility, d ive by the apid g owth of ma ufactu e s i G eate Chi a a d Southeast Asia, pa ticula ly Thaila d a d Viet am.

The expa sio will st e gthe MKS’ ma ufactu i g capabilities, p oject executio , a d local i stallatio teams, while also expa di g e gi ee i g capabilities th ough t ai i g, k owledge sha i g, a d joi t p ojects with MKS teams globally. MKS also pla s to co ti ue suppo ti g R&D activities i Gua gzhou, i cludi g dedicated space fo testi g a d validati g ew p oducts. I additio , the expa sio ei fo ces MKS’ commitme t to its custome s a d the egio .

MKS’ Atotech Gua gzhou Equipme t Facility Phase II Expa sio P oject Officially B eaks G ou d

Left to ight: M . Ha is Li, Global Sales Di ecto , EQ Elect o ics, MSD, MKS; D . James Tsai, S .  Busi ess Di ecto , Elect o ics G eate Chi a, MSD, MKS; M . De g Xu, Di ecto of the Hua gpu Dist ict Bu eau of I dust y a d I fo matio Tech ology; M . Rajesh Kallickal, VP Ope atio s, MSD, MKS; M . Li Weiqu , Level I Divisio Ra k Official, Hua gpu Dist ict; M . Tassilo Thue e, VP & GM Equipme t Busi ess, MSD, MKS; M . Luo Yu zhi, Di ecto of the Yu pu Subdist ict Office of Hua gpu Dist ict; M . Roge Zhao, Di ecto , Equipme t Ope atio s, MSD, MKS; M . Raimu d Zitlau, Head of I stallatio & Se vice Equipme t¸ MSD, MKS; M . Che Jia ha g, Pa ty Sec eta y a d Chai ma of Gua gdo g No.1 Co st uctio E gi ee i g Co., Ltd.

MKS` Atotech global a d egio al leade s joi ed the t aditio al lio da ce eye-dotti g ce emo y, ma ki g the Gua gzhou expa sio a d futu e g owth

Left to ight: D . James Tsai, S . Busi ess Di ecto , Elect o ics G eate Chi a, MSD, MKS; M . Rajesh Kallickal, VP Ope atio s, MSD, MKS; M . Tassilo Thue e, VP & GM Equipme t Busi ess, MSD, MKS; M . Roge Zhao, Di ecto , Equipme t Ope atio s, MSD, MKS

About MKS I c.MKS I c. (NASDAQ: MKSI) e ables tech ologies that t a sfo m ou wo ld. We delive fou datio al tech ology solutio s to leadi g edge semico ducto ma ufactu i g, elect o ics a d packagi g, a d specialty i dust ial applicatio s. We apply ou b oad scie ce a d e gi ee i g capabilities to c eate i st ume ts, subsystems, systems, p ocess co t ol solutio s a d specialty chemicals tech ology that imp ove p ocess pe fo ma ce, optimize p oductivity a d e able u ique i ovatio s fo ma y of the wo ld’s leadi g tech ology a d i dust ial compa ies. Ou solutio s a e c itical to add essi g the challe ges of mi iatu izatio a d complexity i adva ced device ma ufactu i g by e abli g i c eased powe , speed, featu e e ha ceme t, a d optimized co ectivity. Ou solutio s a e also c itical to add essi g eve -i c easi g pe fo ma ce equi eme ts ac oss a wide a ay of specialty i dust ial applicatio s. Additio al i fo matio ca be fou d at www.mks.com.

About the Atotech B a d

Atotech, a b a d withi the Mate ials Solutio s Divisio of MKS, develops leadi g p ocess a d ma ufactu i g tech ologies fo adva ced su face modificatio , elect oless a d elect olytic plati g, a d su face fi ishi g. Applyi g a comp ehe sive systems-a d-solutio s app oach, the Atotech po tfolio i cludes chemist y, equipme t, softwa e, a d se vices fo i ovative a d high-tech ology applicatio s. These solutio s a e used i a wide va iety of e d-ma kets, i cludi g datace te , co sume elect o ics a d commu icatio s i f ast uctu e, as well as i ume ous i dust ial a d co sume applicatio s such as automotive, heavy machi e y, a d household applia ces. With its well-established i ovative st e gth a d i dust y-leadi g global TechCe te etwo k, MKS delive s pio ee i g solutio s th ough its Atotech b a d – combi ed with u pa alleled o -site suppo t fo custome s wo ldwide. Fo mo e i fo matio , please visit us at atotech.com.

Safe Ha bo fo Fo wa d-Looki g Stateme ts

This p ess elease co tai s fo wa d-looki g stateme ts withi the mea i g of the P ivate Secu ities Litigatio Refo m Act of 1995, Sectio 27A of the Secu ities Act of 1933 a d Sectio 21E of the Secu ities Excha ge Act of 1934 ega di g MKS’ ma ufactu i g a d ope atio s expa sio pla s, i cludi g ce tai featu es a d be efits of the expa sio a d the expected time of completio of the expa sio . A y stateme ts that a e ot stateme ts of histo ical fact should be co side ed to be fo wa d-looki g stateme ts. Actual eve ts o esults may diffe mate ially f om those i the fo wa d-looki g stateme ts set fo th he ei , i cludi g as a esult of the facto s desc ibed i MKS’ A ual Repo t o Fo m 10-K fo the yea e ded Decembe 31, 2025 a d a y subseque t Qua te ly Repo ts o Fo m 10-Q, as filed with the U.S. Secu ities a d Excha ge Commissio . MKS is u de o obligatio to, a d exp essly disclaims a y obligatio to, update o alte these fo wa d-looki g stateme ts, whethe as a esult of ew i fo matio , futu e eve ts o othe wise afte the date of this p ess elease.

Co tacts: Bill CaseyVice P eside t, Ma keti gTelepho e: +1 (630) 995-6384Email: p ess@mksi st.com

Kelly Ke y, Pa t e Kekst CNCEmail: ke y.kelly@kekstc c.com

Photos accompa yi g this a ou ceme t a e available at

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