Intercal d.o.o.

Kiln “Number 1” goes back into operation after 9 years. Demand for dolomitic lime has risen to such an extent that kiln number 3 has reached the limits of its capacity. In combination with kiln number 3, which is currently in operation, Intercal has a capacity of 380 t/d at the site.

IGM

IGM Zagorje secures its raw material reserves by acquiring Apnenec d.o.o. with a stone processing plant and a large, high-quality limestone quarry near Zidani Most, approximately 20 kilometres from Zagorje.

IGM Zagorje
IGM commissions a wood gasification plant to reduce primary energy consumption.

Kamen Sirac
Intercal and LTV are merged to form Intercal d.o.o. der Kamen Sirac in Intercal d.o.o.

Peggau
New hydration plant commissioned and w&p Kalk GmbH founded in 2011. A few years later, it will be the parent company of the three lime companies within the Wietersdorfer Lime Business Segment.

Peggau
Wietersdorfer re-enters the lime production sector in 1993, with the acquisition of the Steirische Montan Werke (owner Perlmooser AG), albeit on a modest scale. Wietersdorfer returns fully to the lime business in 2009 with the construction of a new energy-efficient Maerz PFR (parallel flow regenerative) lime kiln.

Kamen Sirac
Kamen Sirac d.d. acquires Kalcind d.o.o. from Industrograd, who sells the plant to Licka Tvornica Vapna. The lime business in the Intercal Group operates under the management of Kamen Sirac. In 2009, two lime kilns are shut down at the production sites in Ličko Lešće and Sirac. The second kiln in Sirac is shut down in 2010.

IGM
IGM Zagorje is converted into a limited liability company (d.o.o.)

Intercal

Lime kiln 3 is completed with a capacity of 200 t/d.

Kamen Sirac
The local Chamber of Commerce of Bjelovar-Bilogora ranks Kamen Sirac d.d. as the top successful company in the medium-sized company category. The Ministry of Economic Affairs awards Kamen Sirac the title of the most successful exporter in its category.

IGM
Privatisation of IGM d.d. is completed and Salonit Anhovo, a subsidiary of the Wietersdorfer Group, takes over the company. The Lipovica quarry, which is part of IGM, is also divested.

Kamen Sirac
Kamen Sirac increases its focus on export. New markets are opened up (Slovenia, quicklime; Bosnia & Herzegovina, hydrated lime) and Kamen Sirac becomes the first Croatian building materials company to be certified in accordance with ISO 9001. In 2001, the export ratio reaches 60%.

IGM
IGM is renamed public limited company – IGM ZAGORJE d.d..

Kamen Sirac
In 1995 the decision is made to switch from calcitic limestone to dolomitic limestone; new excavation sites are developed.
A number of modernisation measures are taken in the following years. Warehouses are also built in order to guarantee customers better and consistent product quality on the one hand and to meet technical and legal standards on the other.

Kamen Sirac
KAMEN IGM becomes Kamen Sirac d.d., war damages are repaired, production and market activities are resumed.

Kamen Sirac
This year sees the opening of the state-of-the-art plant with its two lime kilns, each with a capacity of 175 t/d. Capacity is designed for 100,000 metric tonnes of quicklime. In addition, the company invests in a hydration plant and a bagging unit.

Kamen Sirac
Construction of the Ličko Lešće lime kiln with a capacity of 175 t/d in the Ličko Lešće quarry. The Cardak quarry is opened.

IGM
Construction of a kiln with a capacity of 300 t/d and simultaneous shutdown of 6 old kilns.

IGM
Construction of a hydration plant and (thermal) modernisation of the existing plant in the following years (annular shaft kilns, each with a capacity of 150 t/d).

Kamen Sirac
Mining and production are implemented using very simple methods until the 1960s. Drilling, blasting and dismantling are largely carried out by hand. The use of machines does not become established until this decade.

IGM
With the purchase of two Wienerberger kilns and the Kisovac cement plant, IGM becomes the largest lime producer in all of former Yugoslavia.

Intercal

The factory belonging to the Cop family is nationalised and a larger coal-fired lime kiln is built.

Peggau
The Alois Kern company leases the factory (purchased in 1958) and initiates the expansion of the plant into a modern cement plant after only six months. The lime shaft kilns are closed in 1956 and lime production ceases.

Peggau
As “German Property”, the plant is now run in public trust as a crushed stone and standard quicklime plant..

Intercal

The Čop family establishes a lime plant on today’s Intercal site near Sirac.

IGM
Lime is burnt in four shaft kilns until nationalisation in 1948. During this period, cement is also produced in nearby Kisovec. In 1948, the two Business Segments are merged under the name IGM (Industrija Gradbeni Materiali).

Peggau
Engineer Emil Mohn buys the entire plant and launches the expansion of the plant for cement production. In addition to two cement shaft kilns, he also invests in a mill with a capacity of 12 metric tonnes per hour. As of 1942, the plant is used as an arms factory.

Peggau
The plant facilities are acquired by the engineer Otto Müller. The new owner attempts to establish cement production in addition to lime burning. However, the raw material proves to be unsuitable for cement production and it is not possible to produce standardised cement. The workforce comprises between 20 and 30 employees, depending on turnover.

Kamen Sirac
A corporation (further details are not known), which has already been active in mining crushed stone, begins lime production during this year.

IGM
Lime production enjoys a veritable boom in the first decades of the 20th century. Several kilns are built using different construction methods, but efficiency is still low. It takes 8-10 days to burn a single batch of lime. Thanks to the large lime pieces, the quality is very good, economic viability less so.

Peggau
Two more shaft lime kilns go into operation, tripling the daily output. 90% of the work is still done by hand, from extraction to transporting the limestone to loading it into the kiln.

Peggau
Johann Hofbauer establishes a quarry in today’s Peggau plant and builds the first shaft kiln for lime production in 1895. In the late 19th century, limestone is mainly used for road and railway construction. The first lime kiln produces only 15 tonnes/day.

IGM
Documents indicate that 13 lime kilns produced lime to meet local demand and for export.

Kamen Sirac
No information is available on the beginnings of limestone mining at Sirac. Mining has been carried out on a regulated, semi-industrial level since 1878.

IGM

The oldest plant in the Wietersdorfer Group officially started production in October 1804, long before the parent plant was founded. During the early 19th century, products from the lime works were needed for mercury mining in Idrija, which existed since the beginning of the 16th century.