Papendrecht, 1 July 2022

Royal Boskalis Westminster N.V. (Boskalis) has taken note of the press release issued by HAL Holding N.V. (HAL) on 24 June 2022 in which it formally announced the launch of its public offer for all issued and outstanding shares of Boskalis (the Offer). Reference is further made to HAL’s press release dated 10 March 2022 and Boskalis’ press releases dated 10 March 2022, 8 April 2022, 12 May 2022, 3 June 2022 and 24 June 2022.

Pursuant to the Offer, Boskalis announces that it will convene an Extraordinary General Meeting (EGM) of shareholders to be held on Wednesday 24 August 2022, 10.30 CEST in Papendrecht, the Netherlands, in accordance with the provisions of the Dutch Decree on Public Takeover Bids. At this EGM, the Board of Management and the Supervisory Board of Boskalis will discuss the Offer including the financial and non-financial aspects. The agenda of the EGM can be found here.

In preparation of the EGM, Boskalis has also published its Position Statement regarding the Offer. A copy of the Position Statement can be found here.

Press releases and publications related to the Offer can be found on https://boskalis.com/ir/hal-offer.html and https://www.halholding.com/boskalis-offer.

FOR FURTHER INFORMATION

Investor relations:
Martijn L.D. Schuttevâer
ir@boskalis.com

T +31 786969310

This is a Boskalis press release pursuant to the provisions of article 18, paragraph 3 of the Dutch Decree on Public Takeover Bids (Besluit openbare biedingen Wft) and article 17 paragraph 1 of the European Market Abuse Regulation (596/2014). This press release does not constitute an offer, or any solicitation of any offer, to buy or subscribe for any securities of Royal Boskalis Westminster N.V.

Royal Boskalis Westminster N.V. is a leading global services provider operating in the dredging, maritime infrastructure and maritime services sectors. The company provides creative and innovative all-round solutions to infrastructural challenges in the maritime, coastal and delta regions of the world. With core activities such as coastal defense, riverbank protection and land reclamation Boskalis is able to provide adaptive and mitigating solutions to combat the effects of climate change, such as extreme weather conditions and rising sea levels, as well as delivering solutions for the increasing need for space in coastal and delta regions across the world. The company facilitates the development of offshore energy infrastructure, including renewable wind energy. Boskalis is furthermore active in the construction and maintenance of ports, waterways, access channels and civil infrastructure, thus helping to facilitate trade flows and regional socio-economic development. In addition, Boskalis is a global marine salvage expert and has a strategic partnership in terminal services (Smit Lamnalco). With a versatile fleet of more than 500 vessels and floating equipment and approximately 10,000 employees, including associates, Boskalis is creating new horizons around the world.

This press release can also be found on our website www.boskalis.com.

Attachments

• Boskalis Position Statement 01072022

• Agenda EGM 24082022 ENG

• EGM and Position Statement 01072022