What Karreman Quarries does

Karreman Quarries is a family-owned Australian quarry operator headquartered in Sheldon (Mount Cotton), Queensland, that mines, crushes, and distributes construction aggregates and road base products across Brisbane and South East Queensland. Its core product range spans bio filter materials, washed and crushed concrete and asphalt aggregates, precoated aggregates, bedding and drainage aggregates, unbound and cement-treated road base (MRTS05/MRTS10/MRTS08 compliant), reinforced soil structure fill, structural fill, and large rock products, all manufactured to Australian Standards and Queensland Department of Main Roads (TMR) MRTS specifications.

The technical foundation comprises two quarry operations — Mount Cotton (the original 1976-acquired asset) and Harlin (Brisbane Valley Region, established 1997, with a 2013-built state-of-the-art crushing plant consisting of 1 jaw crusher, 3 cone crushers, 6 screens, and 63 conveyors rated at 600-1000 tonnes per hour) — supported by Australia's largest privately owned Mack Truck fleet of approximately 120 quad-axle units, with the 600th Mack about to be delivered. Quality and regulatory credentials include BSI ISO 9001 certification, NATA laboratory accreditation, TMR approved quarry status, and EPBC approval for the West Mt Cotton expansion.

The business operates a direct-to-customer B2B model, supplying on a quote-based, pay-as-you-go basis primarily to government infrastructure bodies (Brisbane Port Authority, Queensland Main Roads) and commercial construction companies (concrete plants, major-project contractors such as the Western Pipeline Project). Pricing is quote-locked for 30 days, subject to rise-and-fall provisions, with GST of 10% added and minimum cartage surcharges plus a 15% return surcharge. All revenue is generated through one-time product sales of aggregate tonnage delivered via the in-house truck fleet, making Karreman a vertically integrated quarry-to-site aggregate producer with no recurring or subscription layer and material concentration in two geographic nodes.

Name

Karreman Quarries

Legal name

Karreman Quarries

Website

https://karreman.com.au

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

11–50 employees

Short description

Karreman Quarries is a family-owned Australian quarry operator supplying certified road base, asphalt aggregate, concrete aggregate, and rock products to government infrastructure and commercial construction customers across Brisbane and South East Queensland via two quarries and Australia's largest privately owned Mack Truck fleet.

Ownership category

akta.pro rank

Product category

Construction Aggregates

NAICS

Construction Sand and Gravel Mining (212321), Other Crushed and Broken Stone Mining and Quarrying (212319), Nonmetallic Mineral Mining and Quarrying (2123)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH)

akta.pro secondary industries

Sand & Gravel Extraction & Processing (IMAKAHAB), Crushed Stone Quarrying & Processing (IMAKAHAA), Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI), Asphalt Aggregates & Specialty Aggregates (Rail Ballast, Riprap, Lightweight) (IMADAAAJ)

Keywords

• Construction aggregates
• Quarry products
• Road base supply
• Crushed rock materials
• Asphalt aggregates

Headquarters

HQ city

Mount Cotton

HQ country

Australia

HQ region

Oceania

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Quarry Products Sales: Sale of quarry materials including road base, asphalt aggregate, concrete aggregates, precoated aggregates, bedding/drainage aggregates, structural fill, and large rock products. Revenue is generated through product delivery to customers including government infrastructure projects and construction companies. Payment terms are on or before the last day of the month following supply.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Karreman Quarries extracts, crushes, and supplies quarry materials including road base, asphalt aggregate, concrete aggregates, precoated aggregates, bedding and drainage aggregates, cement-treated road base, reinforced soil structure fill, structure fill, and large rock products. Products are manufactured to meet Australian Standards and Queensland MRTS specifications and are sold primarily to government infrastructure clients and commercial construction companies in Brisbane and South East Queensland.

Product overview

Karreman Quarries is a quarry materials supplier operating since 1977, providing a comprehensive portfolio of construction aggregates and road base products for infrastructure projects across South East Queensland. The company's product range centers on several core categories: Bio Filter Materials for filtration systems; Concrete and Asphalt Aggregates in various sizes; Precoated Aggregates for durability; Bedding and Drainage Aggregates; Unbound and Cement-Treated Road Base compliant with Queensland MRTS specifications; Reinforced Soil Structure Fill for retaining walls; Structure Fill; and Large Rock Products for landscaping and erosion control. These products are manufactured to meet stringent Australian Standards and are supplied to major infrastructure clients including the Brisbane Port Authority and Queensland Main Roads.

Differentiator

Problem solved

Functional benefit

Products and services

• Bio Filter Materials Specialized filtration materials including bio filter media sand, sandy loam, transition layer sand, coarse sand, and 5mm drainage layer aggregate, designed to meet FAWB guidelines and bridging criteria for filtration systems in construction and infrastructure projects.
• Concrete and Asphalt Aggregates Washed river sand and crushed aggregates in various sizes (5/7mm, 10mm, 14mm, 20mm, 40mm) suitable for concrete and asphalt applications, manufactured to meet rigorous industry specifications for construction companies and concrete plants.
• Precoated Aggregates Precoated aggregates in sizes 7mm, 10mm, 14mm, and 16mm, manufactured to ensure durability and compliance with MRTS22 (Queensland Transport and Main Roads Specifications) for use in road surfacing by government infrastructure clients and contractors.
• Bedding and Drainage Aggregates Range of bedding and drainage materials including sands, aggregate layers, and rock fill in various sizes from 5/7mm up to 150-300mm, meeting MRTS04 and other relevant Australian Standards for civil and infrastructure construction.
• Unbound Road Base Extensive selection of unbound road base materials including Type 1 HSG and Type 2.1 through Type 3.5 variants with varying CBR (California Bearing Ratio) ratings, manufactured to comply with MRTS05 specifications for road construction.
• Cement Modified / Treated Road Base Cement-treated road base products including lightly bound base and sub-base materials (Type 2.1, 2.3) with various strength ratings and working times, compliant with MRTS10 and MRTS08 specifications.
• Reinforced Soil Structure Fill Structural fill and RSS (Reinforced Soil Structure) wall fill products including free-draining variants, designed to provide reliable support for retaining walls and embankments, adhering to MRTS06 and MRTS04 specifications.
• Structure Fill Processed Class A fill materials with varying CBR ratings and sieve specifications, including MRTS04 compliant rock fill (100-300mm), for structural applications in civil and infrastructure construction.
• Large Rock Products Large rock products in various sizes (10-300mm to 700-1500mm) with defined d50 values, suitable for landscaping, erosion control, and structural applications, with coefficient of uniformity greater than or equal to 5.

Quantifiable outcome

• Over 150 skilled workers supporting consistent quality production
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators4 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• CEMEX Australia: Global building materials supplier's Australian operations focused on aggregates, concrete and cement. Competes on large infrastructure aggregate tenders in Queensland though with a national rather than regional concentration.
• Boral Limited: Australia's largest construction materials group, producing aggregates, asphalt, concrete and cement across all states. Competes with Karreman on infrastructure tenders in South East Queensland but operates a far broader national footprint and product portfolio.
• Fulton Hogan Industries: Australasian infrastructure contractor that owns and operates quarries to vertically integrate road and civil construction projects. Compares to Karreman as both supplier and user of aggregates in South East Queensland infrastructure delivery.
• Hanson Australia (Heidelberg Materials): Global heavyweight's Australian arm, supplying aggregates, concrete, cement and asphalt nationwide. Overlaps with Karreman in quarry-produced aggregates and concrete aggregates to major infrastructure customers in Queensland.
• Holcim Australia: Major global cement and aggregates producer with Australian operations across concrete, aggregate and asphalt. Competes for large government and infrastructure contracts in Queensland while serving a much broader product and geographic set.
• Adbri Limited: Australian producer of cement, lime, concrete and aggregates with quarries across the country. Adjacent competitor for aggregate and road base supply on major Queensland projects, with deeper product mix (cement, lime) than Karreman.
• Hy-Tec Industries: Australian concrete and aggregates supplier producing crushed rock, sand and premixed concrete from owned quarries. Overlaps with Karreman in concrete aggregates and quarry-supplied road base to Queensland infrastructure projects.

Direct peers

• Wagners: Queensland-based, family-influenced producer of cement, concrete, aggregates and flyash with its own logistics fleet. Closest analogue to Karreman in business model, regional footprint, and integrated quarry-to-customer offering, though operating at materially larger scale and ASX-listed.
• Alex Fraser Group: Australian recycler and producer of crushed concrete and quarry aggregates, supplying road base and construction materials across Victoria and other states. Comparable in core activity (crushing, screening, road base production) and in serving infrastructure customers, though more recycling-led.

Others

• Boom Logistics: Australian heavy haulage and crane logistics provider serving mining, construction and infrastructure customers. Compares to Karreman only as adjacent logistics/talent-pool overlap in heavy truck fleet operations, not as a quarry competitor.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
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Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Karreman Quarries