Displaying items by tag: Limestone

India: ACC has announced its successful purchase at auction of the Kannur limestone block mineral reserve in Wadi, Kalaburagi District, from the Karnataka government. The producer plans to use the block to supply limestone for its Wadi cement plant.

Azerbaijan: Cement production grew by 6.3% year-on-year to 3.4Mt in 2021. 113,000t of cement in inventory was reported on 1 January 2022, according to the State Statistical Committee and the Trend News Agency. Production of construction gypsum and limestone rose by 48% and 4.4% to 35,800t and 35,800t respectively.

India: UltraTech Cement has entered into a share purchase agreement to acquire 100% ownership of National Limestone Company for US$3.09m. National Limestone Company’s parent company Ghadiya Group bought it from Holcim subsidiary ACC for US$2.5m in November 2020.

India: UltraTech Cement has emerged as the preferred bidder in the auction of limestone company Ravur Limestone. Ravur Limestone’s limestone assets consist of 708Mt of stone over 7.13km² in Tehsil Chittapur in Karnataka’s Kalburgi district. The Karnataka government will conduct the sale by electronic auction.

India: ACC and Ambuja Cements have partnered with the Indian Institute of Technology Delhi (IITD) to develop a range of calcined clay cements with 50% lower CO₂ emissions than Ordinary Portland Cement (OPC). The collaboration will vary clinker, calcined clay and limestone levels in calcined clay cements in order to ascertain their effects on its performance. France-based Holcim Innovation Centre will fund the research.

Holcim India chief executive officer and managing director Neeraj Akhoury said "Through our extensive research and development setup, we consistently strive to develop new low-CO₂ materials for the construction industry. Calcined clay cement is one such avenue to make a significant quantitative difference in the industry and further accelerate our sustainability drive. Our academic partnership with IITD is a big step towards building a greener future and we are excited to collaborate with the best minds in the country."

The producers have previously partnered with the Indian Institute of Technology Madras (IITM) to study low-CO₂ binders with alternative reinforcements and with the Indian Institute of Technology Hyderabad (IITH) to develop smart sensing technology for continuous on-site strength evaluation of a concrete structure.

Sweden: The government has extended Cementa’s permit to continue mining limestone at the quarries supporting its Slite cement plant for just over one year until the end of December 2022. The cement producer said that it would restart its mining activity immediately. However, it warned that the decision could still be appealed and work stopped whilst the case was pending. The subsidiary of Germany-based HeidelbergCement also refused to rule out shortages of cement in the future due to general uncertainty with the situation. Cementa has now started applying for a three to four year mining permit at the site.

Uzbekistan: The government has extended its suspension of tariffs on imports of cement until 1 November 2021. Business World Magazine News has reported that the policy aims to reduce the cost of housing. In order to support the domestic cement industry, producers’ tax rate will be reduced to 15% from 20%. The government will also halve taxes on natural resources.

Sweden: Cementa says it is preparing to ration deliveries of cement in December 2021 due to uncertainty about whether it can renew the mining licence at its integrated Slite plant in Gotland beyond the end of October 2021. The subsidiary of Germany-based HeidelbergCement has warned customers that it is preparing to implement quotas of cement products from its two plants and five terminals on a week-by-week basis. The quotas will be based on what level of cement customers have ordered previously over the past 36 months. It will also take into account whether there have been significant volume changes during the period.

Cementa says it submitted its application for an emergency permit in late September 2021. It needs approval from the government by mid-November 2021 to avoid a potential cement shortage. However, any such approval may be subject to an appeal leading to further delays in mining.

Argentina: Sit-in protesters from the Argentinean Mining Workers Association (AOMA) have blocked access to the hoppers of limestone crushers at Minerar’s Olavarría quarry, according to the Clarín newspaper. The quarry supplies limestone to Loma Negra’s La Amali cement plant.

The cement producer said “The biggest problem is that if they don't solve the problem, and stop the supply raw material, it will complicate cement production."

India: Local press expects UltraTech Cement to be the successful bidder for the 210Mt-capacity Ramstahn Ghunchihai limestone mine in Madhya Pradesh. Sree Jayajothi Cements is the preferred bidder in another auction, for a large limestone quarry in Andhra Pradesh. Nine limestone mines sold at auction in the first half of the 2022 financial year.