NOTICE

Mangrove LuxCo III S.à r.l.

Société à Responsabilité Limitée

Registered Office: 2, rue Edward Steichen,

L-2540 Luxembourg

Grand Duchy of Luxembourg

R.C.S. Luxembourg B236258

7.775% Senior Secured Notes due 2025

ISIN Code: XS2059543921 / XS2059544655 / XS2059545389

Luxembourg — 1:00 pm, 17 November 2023

We are pleased to invite you to the 2023 Investor Day of Mangrove LuxCo III S.à r.l. in London on

Monday, December 11, 2023, 11:30 am London time

The presentation will start at 12:00 noon London time

Haberdashers’ Hall

18 West Smithfield, London, EC1A 9HQ

https://haberdashers.co.uk/haberdashers-hall-0

Mangrove LuxCo III S.à r.l. is organizing this Investor Day to give you the opportunity to meet some of the key management team, which will inform you about market situation and trends, as well as current initiatives. Mangrove LuxCo III S.à r.l. will also discuss the bondholder quarterly reports for Q3 2023 and the results of operations of Mangrove LuxCo III S.à r.l. and its subsidiaries (the “Mangrove Group”) in respect of such period. An informal get-together with refreshments and snacks concludes the Investor Day, which will then end around 4:00 pm.

Please be advised that all participants at Haberdashers’ Hall in London must register in advance to the conference:

In order to allow for additional time and to accommodate for holidays, the date to confirm your attendance (info@mangrove-investor-relations.com) has been extended until November 28. Please include your details: including name, position, email address & institution.

Final guest list confirmation will be sent to you by November 30, 2023.

For those who cannot join us in London we will offer the opportunity to participate by webcast or telephone and to follow the presentation (12:00 noon London time, 1:00 pm CET, 7:00 AM EST). We will provide the information how to register for the dial-in well before the Investor Day at the investor website of the Mangrove Group at Syndtrak.

If you have any questions regarding the Investor Day, please contact Mangrove Investor Relations (info@mangrove-investor-relations,com). Holders of the Senior Secured Notes, prospective investors, broker dealers and securities analysts that do not yet have access to the investor website of the Mangrove Group at Syndtrak may also contact Mangrove Investor Relations.

The Mangrove Group, under its brand Kelvion, is a leading global manufacturer of industrial heat exchangers for a highly diversified range of end markets, such as Data Centres, Food & Beverages, HVAC & Refrigeration, Power & Energy, Chemicals, Oil & Gas, Transportation and Heavy & Light Equipment. In these multiple markets, the Group supports its broad and long-standing customer base through its global sales, service and production network with energy efficient cooling and heating solutions for high and green tech applications.

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Disclaimer

This press release has been prepared by the Mangrove Group solely for informational purposes and does not constitute, and should not be construed as, an offer to sell or issue securities or otherwise constitute an invitation or inducement to any person to purchase, underwrite, subscribe to or otherwise acquire securities in any Mangrove Group entity.

Certain statements contained in this press release that are not statements of historical fact, including, without limitation, any statements preceded by, followed by or including the words “targets,” “believes,” “expects,” “aims,” “intends,” “may,” “anticipates,” “would,” “could” or similar expressions or the negative thereof, constitute forward-looking statements, notwithstanding that such statements are not specifically identified. Examples of forward-looking statements include, but are not limited to: (i) statements about future financial and operating results; (ii) statements of strategic objectives, business prospects, future financial condition, budgets, projected levels of production, projected costs and projected levels of revenues and profits of the Mangrove Group or its management or boards of directors; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements.

Forward-looking statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions which are difficult to predict and outside of the control of the management of the Mangrove Group. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in such forward-looking statements. We have based these assumptions on information currently available to us, and if any one or more of these assumptions turn out to be incorrect, actual market results may differ from those predicted. While we do not know what impact any such differences may have on our business, if there are such differences, our future results of operations and financial condition, could be materially adversely affected. You should not place undue reliance on these forward-looking statements. Forward-looking statements speak only as of the date on which such statements are made. The Mangrove Group expressly disclaims any obligation or undertaking to disseminate any updates or revisions to any forward-looking statement to reflect events or circumstances after the date on which such statement is made, or to reflect the occurrence of unanticipated events.

No representation, warranty or undertaking, express or implied, is made as to, and no reliance should be placed on, the fairness, accuracy, completeness or correctness of the information or the opinions contained herein. Neither the Mangrove Group nor any of its advisors or representatives shall have any liability whatsoever (in negligence or otherwise) for any loss howsoever arising from any use of this press release or its contents. The information contained in this press release does not constitute investment advice.

This press release is not for publication, release or distribution in Canada, Japan or Australia. Any failure to comply with this restriction may constitute a violation of securities laws. This press release and the information contained herein are not an offer of securities for sale in the United States or to U.S. persons. Any securities referred to herein have not and will not be registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States or to U.S. persons. Any public offering of securities to be made in the United States would have to be made by means of a prospectus that would be obtainable from the Mangrove Group and would contain detailed information about the Mangrove Group, of any securities and its management, as well as financial statements. No money, securities or other consideration is being solicited, and, if sent in response to the information contained herein, will not be accepted.