Mibau Stema Group
A lot to look back on and even more to look forward to
For almost a quarter of a century, we at Mibau Stema Group have been providing the building and construction world with quality aggregates. We are proud of our local roots and our leading position as the largest supplier of aggregates in Northern and Central Europe. Along the way, we have continually developed to become even better in all we do, from sustainability and innovation to product assortment and logistics. We are a company built on the expertise, commitment, and enthusiasm of all those who work for us. Every day, they ensure we are heading in a successful and sustainable direction.
2024
The entire group and its subsidiaries are rebranded under the Mibau Stema Group umbrella
Acquisition of Andreas Jensen, renaming to Mibau Stema S&G Aabenraa
2022/2023
Modernisation of our shipping fleet with a 15% CO2 reduction footprint
2021
2nd vessel's new building, mv Fjordnes, is successfully delivered into TimeCharter in August that year.
Mibau Germany acquires the shares in Dever Baustoffhandel Papenburg and Schulte & Bruns Emden with MTE Mineralstoff Terminal Emden.
2020
1st vessel's new building, mv Starnes, is successfully delivered into TimeCharter in September 2020.
Mibau Baustoffhandel renamed Mibau Deutschland GmbH (Germany)
2016
With the contribution of the quarries Tau and Dirdal into the Mibau Stema Group, HeidelbergCement becomes a 60% majority shareholder.
2012
More than fifteen million tonnes of crushed stone, gravel and sand sold within one year for the first time
2011
Completion and production capacity ramp up in Jelsa to ten million tonnes per year, production reserves for more than thirty years secured
2010
MS Fitnes self-unloading vessel (32,000 tdw) delivered
2009
MS Bulknes and MS Beltnes self-unloading vessels (32,000 tdw each) delivered
Mibau Nederland BV sales subsidiary is founded
2008
Mibau Polska sales subsidiary is founded in Gdańsk
Stema Barge II (24,000 tdw) is purchased
Stema Shipping acquires 100% of Norsk Stein.
2007
Start of expansion to quarry in Jelsa (NOR) from five to ten million tonnes a year
2005
MS Sandnes self-unloading vessel (28.000 tdw) built
EWH renamed to Mibau Holding
Stema Shipping France sales company is founded
2002
Splitt Chartering ApS (DK) founded to concentrate shipping activities
Rostocker Zementumschlagsgesellschaft mbH acquired
2001
Take over of the distribution of sand and gravel products of the HeidelbergCement Group
Beginning and expansion of activities at Larvik quarry (NOR)
New Stones self-unloading vessel (28,000 tdw) built at Sietas shipyard
1997
Kari Arnhild (now Splittnes) self-unloading vessel (16,073 tdw) purchased
Participation in Norwegian Jebsens/Beltships shipping company
1996
Purchase "Stema Barge" for coastal defense projects in the UK
1995
Stema Shipping UK is founded in Greater London
33% percent share of Norsk Stein quarry in Jelsa (NOR) acquired
1994
EWH business operations transferred to Mibau
Stema Shipping A/S (DK) shares acquired
1993
50% share of EWH sold to the HeidelbergCement Group
Greifswald gravel works founded, MS Seekies dredger built
1990
SKM Seekies Mecklenburg GmbH in Rostock and Baltic Kies DK founded,
gravel dredger purchased and gravel works founded in Rostock
1987
The establishment of Norsk Stein A/S in Jelsa, which becomes the largest quarry in Europe of its kind to date
Mibau Baustoffhandel GmbH (formerly H.-H. Rademacher GmbH, Cuxhaven) acquired
1978
Elbe-Weser-Handelskontor trading company founded by Hans-Jürgen Hartmann
1975
In 1975, Stenmaterialer & Shipping Aabenraa was founded. The new company focused on the raw material trade between Norway and Sweden and provided the German market with concrete and asphalt. From the beginning, the company prioritised services like chartering, stevedoring, and shipping consultation.
In November 1975, Lau Boisen joined with Stenmaterialer & Shipping Aabenraa, quickly acquiring a 49% stake in S&S shares.