(Reuters] -North America’s leading cement producer Cemex SAB de CV (NYSE:) de CV suffered a net loss in third quarter of $376 millions. This was due to supply chain disruptions, an increase in transport and energy costs, and a slump in shares.

COVID-19 has hampered companies’ ability worldwide to receive and send product supplies and parts. Cemex Mexico earlier warned that the snags and inflation could affect its earnings for full year by around $100 million.

Cemex shares fell more than 4 percent to 13.25 pesos within minutes of the market opening. This was their lowest point since March. Shares had lost a little to 13.45 pesos by 10:25 Eastern Time to trade at 2.96%.

Cemex saw a 10% increase in quarterly sales thanks to strong demand from Mexico and the United States. However, this net loss was recorded by the company.

The United States is Cemex’s largest market. Net sales increased 10% to $1.12 Billion in the third quarter. Sales from Mexico rose 20% to $868 MILLION.

Cemex reported that it implemented another round of price rises in its quarter-reported for cement and ready mix businesses in the United States. Prices were up by 2% compared to the previous three months.

Fernando Gonzalez, Cemex Chief Executive said that he is confident in his pricing strategy to more than offset the recent spikes in input costs inflation.