Dottikon Es : Invitation to the Capital Markets Day on Thursday, June 1, 2023

MEDIA RELEASE	Dottikon, May 5, 2023

DOTTIKON ES - Invitation to the Capital Markets Day on Thursday, June 1, 2023

Dottikon, Switzerland, May 5, 2023 - DOTTIKON ES Group, positioned as strategic development and manufacturing partner and specialized in the area of hazardous reactions and the exclusive synthesis of active pharmaceutical ingredients (API) and fine chemicals, closed its business year 2022/23 on March 31, 2023. The Annual Report 2022/23 will be published on May 31, 2023.

DOTTIKON ES invites institutional investors and financial analysts to a Capital Markets Day, which will include a site tour and take place at DOTTIKON's site in Switzerland in the afternoon of Thursday, June 1, 2023.

The event is tailored exclusively to institutional investors and financial analysts. For a potential participation, we kindly ask you to register bindingly at www.dottikon.com/cmd by Thursday,

May 25, 2023 at the latest. Please note that the number of participants is limited.

DOTTIKON ES manufactures high-quality performance chemicals, intermediates, and exclusive active pharmaceutical ingredients (APIs) for the world's leading chemical, biotech, and pharmaceutical industry. The company with its production site in Dottikon (Aargau, Switzerland) is specialized in hazardous reactions and positions itself as strategic development and manufacturing partner and performance leader. Its safety culture created over the past 110 years guides the innovative use of hazardous reactions, low-temperature and high-pressure chemistry, as well as continuous processing in order to challenge, tighten, or shorten conventional chemical synthesis routes, improve selectivities, yields, and purities, as well as reduce energy consumption, waste, and CO2 emissions sustainably. The versatile technology and equipment portfolio is used, main- tained, and continuously expanded to design, develop, and optimize chemical processes and technical manufacturing procedures for the rapid scale-up from kilograms to multi-tons in order to produce and deliver the respective market volumes.

DOTTIKON ES' one-site strategy allows reduced decision and communication pathways. This ensures rapid and efficient project development and management, clear and transparent data and process documentation, and close customer communication.

DOTTIKON ES HOLDING AG is listed on the SIX Swiss Exchange.

Symbol: DESN

Security number: 58258171

ISIN: CH0582581713

For further information please contact

Markus Blocher, Ph.D.

CEO

Dottikon ES Holding AG

Tel [phone] [e-mail]

Dottikon ES Holding AG

P.O. Box, 5605 Dottikon, Switzerland, Tel [phone], [e-mail], www.dottikon.com