Sif N Confirms Manufacturing Ramp-Up Progress

Roermond, 18 December 2025 - Sif Holding N.V., a leading provider of offshore wind foundation solutions, is pleased to announce significant progress in the ramp-up of its manufacturing plant at Maasvlakte 2 Rotterdam.

Sif has communicated progress by reporting the number of manufactured monopiles, using a reference capacity of four monopiles per week. This benchmark was established based on an annual production target of 200 reference monopiles, each weighing 2,500 tonnes once the Maasvlakte II Facility is fully operational. In line with the plan that was announced in August 2025, Sif and its equipment partners have invested time and resources in improvements in the process, people and equipment of the Maasvlakte II Facility. Following the completion of these equipment upgrades and process stabilization, we have achieved output of four monopiles per week in December 2025. This milestone marks the completion of the planned equipment upgrades and process stabilization, with the next phase focused on further improving our efficiency into the first half year of 2026. As a result of the solid performance, Sif reiterates the adjusted EBITDA outlook of €45 million for 2025 and the provisional minimum adjusted EBITDA guidance of €135 million for 2026.

Refer to the full press release in attached PDF