In April 1998, the Icelandic sold a 26.5% share in the company after an auction. Icelandic Járnblendifélagið hf. was listed on the Main List of the Icelandic Securities Exchange on 18 May 1998. The price of iron silicon fell sharply in the latter half of 1997 and further in the following years. The company's operations suffered losses in 1999 and for the next two years, affecting equity position and thereby the terms of long-term loans. The company's share capital was increased by an offer to shareholders in 2000, but Elkem underwrote the offering. After that, Elkem had a larger share in the company. In November 2001 the company's share capital was written down, followed by an offer of increased share capital. Elkem also underwrote this offering and subsequently owned a 72.59% share in the company. In December 2002, Elkem purchased a 10.49% share in the state and made an offer to other shareholders to buy their shares. In March 2003, Icelandic Alloys was delisted from the Main List of the Icelandic Stock Exchange, by which time Elkem had acquired over 90% of the share. Elkem bought shares in other shareholders later that year and has been the owner of the company in full since 2003.
For a long time, Icelandic Alloys produced almost exclusively standard or conventional silicon iron, which is blended in ratios of 25% iron and 75% silicon metal. In 1997, the proportion of non-traditional silicon iron products was about 7%. By manufacturing silicon iron with lower content of additives such as aluminum, carbon and titanium, the company has continuously increased the value of the products.
The Board of Elkem approved on 13 October 2006 the construction of a new FSM production unit for further processing of liquid silicon iron. The investment was estimated at NOK 270 million (Norwegian kroner). FSM is a silicon iron mixed with magnesium and other substances, written MgFeSi. FSM is English abbreviation for the elements ferro, silicon and magnesium. Operations of the FSM unit commenced in 2008.
In early 2012, production of magnesium silicon iron (FSM) was largely discontinued at Elkem in Iceland. But after all, the factory was operating at full capacity with the production of other products.