Slovak building materials producer Holcim (Slovensko) has invested nearly 4.2 mln Slovak crowns 9Euro108,800) in technology upgrade, it was reported on January 14, 2005.  The new technology for cement production with reduced chrome content meets the European Union environmental standards, Holcim (Slovensko) marketing and sales director Mario Grassl said.  Holcim (Slovensko), part of the Swiss construction concern Holcim, is headquartered in Rohoznik, western Slovakia, is considered to be among the largest Slovak cement producers.