The procurement of materials has emerged as an important issue due to the Japanese government's restrictions on Korea's export of semiconductor materials, according to Japanese economy media Nikkei Asian Review.

The media quoted Professor Park Jae-geun of Hanyang University, a former Samsung executive, who said, "Samsung is procuring photoresist from a company based in Belgium."

The media assumes that although Park did not disclose the Belgian supplier name, it would be a EUV register, a joint venture established in 2016 by Japanese company JSR and the Belgian Research Center IMEC.