Sales of Portland cement in Colombia have increased 10.5 per cent in the first quarter of this year, if compared with Q1 2006. Sales totaled 2,107,206t surpassing in 3.1 per cent the best performance of the sector that was reached in Q1 1995 when sales totaled 2.076,946t. The information was announced by the cement producers institute el Instituto Colombiano de Productores de Cemento (ICPC).