Profitable business

in a responsible manner

The many aspects of limestone

Limestone can only be extracted in areas where limestone deposits exist. Before mining can start, geological studies establish the suitability of the deposit, followed by a thorough permit process to ensure control of environmental impacts. The mining stage can continue for decades, but after-care is taken into account from the beginning. Once mining has ended, either fully or in parts of the mine, after-care opens up new opportunities.

Pure and natural

Limestone is a pure and natural substance. It consists almost solely of calcium carbonate and can be used crushed or ground, or it can be refined into calcium oxide (quicklime) or calcium hydroxide (slaked lime). See the production process here

Part of everyday life

Limestone is a versatile and mainly irreplaceable raw material that plays a role in the production of many essential products that are necessary for maintaining our current standard of living. Every day we use products that could not have been made without limestone-based products. In environmental applications, they are needed to provide society with the basic prerequisites for life – clean air, pure water and fertile soil. Read more about use of lime in environmental applications.

Lime leads to high biodiversity

Mining areas provide an excellent environment for plants thriving in lime-rich soil, where several rare plants, such as orchids, can be found. While extraction is going on, rare species can be moved and replanted in new areas that correspond to natural conditions near the quarry, and later on re-established in the post-mining areas. Former mine areas can serve as new environments, or neo-landscapes, favouring unique biodiversity. For example, truffle cultivation has been tested in Pargas and on Gotland. 

Culture as a side product

Some quarries offer such dramatic scenery as to make them popular touristic attractions. The Pargas quarry has also served as a unique concert venue for the Rowlit festival. Another concert venue is the Sipoo plant area, where an annual jazz concert is organised.  Nordkalk’s areas are used for photo sessions, TV programmes and even movies. The most famous of these is probably the show Amazing Race, which visited the underground Tytyri mine. Picture is from Lappeenranta, where a very popular police series Sorjonen was filmed for the Finnish TV in summer 2016.

Second life of a mine

At Storugns on Gotland, a motorsports track has been built in an abandoned part of the quarry, and close by, land has been assigned to a wind power plant.
In Nordkalk’s underground mine in Tytyri, Finland, in the parts where mining operations have ceased, there is a museum, an exhibition area and a festival hall. Some of the empty mine shafts in Tytyri are used for the final storage of power plant ash, and the former mine also features a test laboratory for high-rise elevators. 

Nordalk participates in research projects

Nordkalk participates in research projects that studies the possibilities to improve the status of the environment. An example of this is a program to promote the nutrient recycling and improve the status of the Archipelago Sea (Raki2 2016-2019). The program granted the Aalto University financing to develop ways to gather nitrogen and phosphorus from liquid waste. Nordkalk is participating in the study.

Positive net balance

Limestone-based products are needed to keep the world going, and we believe that the benefits of limestone clearly outweigh the negative impacts of operations. We have defined major environmental aspects and targets for proactive and protective measures.  Read more about our environmental work:

Leader in Northern Europe

Nordkalk is the leading limestone company on its home markets. We deliver essential raw materials to numerous industries, and our solutions contribute to clean air and water as well as productivity of agricultural land.