Dutch steel tubulars manufacturer Sif Holding NV <a href="https://live.euronext.com/en/product/equities/nl0011660485-xams/sif-holding/sifg" target="_blank">(AMS:SIFG)</a> said on Thursday it has signed a final agreement to supply monopile foundations for the 760-MW Hollandse Kust West VI offshore wind farm to be built off the Dutch coast.