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Sustainability

Our Journey

Lime is a versatile mineral that has played an integral part of everyday life for centuries. For over 100 years, MLC has been producing products from one of the richest limestone reserves in the world. Protecting this natural resource will ensure that we can support the evolving needs of society for many more years to come. That is one reason why MLC is committed to conducting business in an environmentally, socially, and ethically responsible manner. 

Developing a pathway to a more sustainable future will require setting bold ambitions. 

Reliable Quality, Responsibly

The objectives for sustainability at MLC are driven by priorities in three areas: Environmental, Social, and Governance. By promoting stewardship, ethical management, and responsibility in these areas, we can create positive impacts for both people and planet. 

Sustainability

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Sustainability Strategy

Fiona Woody, Director of Sustainability and ESG, discusses MLC’s core value for sustainability and developing a new ESG strategy for the company

MLC Policies for ESG

ESG Policy
Supplier Code of Conduct
Human Rights Policy
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Action Matters

MLC views ESG as a continuous improvement activity requiring dedicated leadership and engagement at all levels of the organization. Below are examples of recent activities focused on ESG improvements. 

Examples of current ESG projects: 

Pay Equity Analysis

Conducted annually to provide assurance of fair, unbiased compensation

Emissions

We are making year-over-year improvements to reduce emissions across all sites globally, including capital projects to update our kilns and equipment to the latest technologies

Supply Chain

We have conducted a Human Rights Risk Assessment of our supply chain, work with customers to help them understand and reduce Scope 3 emissions, and set up distribution terminals to reduce emissions associated with trucking.

Waste Management

Continuously driving down waste at all our sites globally, as well as offering services to help our customers reduce and manage waste at their operations

Carbon Capture

We capture a portion of the CO2 we generate for re-use in circular production processes.

Green Energy

We are actively shifting toward greener energy sources globally, including bio-based energy through anaerobic digestion and alternative fuel pilot testing

Biorenewability

We work with the World Bird Sanctuary to ensure our operations do not negatively impact local ecosystems, commit volunteer hours to environmental preservation, and have restored over 65 acres of quarried land at our SIngleton Birch operation, planting over 20,000 trees.
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2024

Completed Human Rights Supply Chain Risk Assessment

The assessment, completed in partnership with Business for Social Responsibility, will help MLC to target and mitigate human rights risks in its supply chain.

2024

Launched Project for New World-Class Kiln in Bonne Terre

The assessment, completed in partnership with Business for Social Responsibility, will help MLC to target and mitigate human rights risks in its supply chain.

2023

Launched Innovation Program

MLC's "AIMS" innovation program is focused on developing sustainable solutions for lime, such as electric vehicles, carbon capture, and operational excellence.

2023

Implemented Policies for ESG and Human Rights

These polices provide added governance for ESG matters
View policies

2023

Completed safety culture assessment and improvements

Following a third-party audit of MLC’s safety culture, our EH&S team and Safety Steering Committee turned assessment results into actionable initiatives, including improvements for engagement, communication, and supervisory presence in work areas, as well as additional forums for safety questions.

2023

Obtained FSSC 22000 certification

All food-grade operations were certified to meet the standards of FSSC 22000, a food safety management scheme recognized by the Global Food Safety Initiative (GFSI), in addition to our existing certifications for AIB and ISO 9001:2015.
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2022

Completed comprehensive ESG materiality study

The completed study is helping MLC to define ESG and Sustainability strategy.

2022

Launched internal ESG training

2021

Added leadership role for ESG and Sustainability

Fiona Woody hired to new role of Director, Sustainability and ESG, reporting to the CEO. In addition to guiding MLC's strategy, policies, and reporting for ESG, she also works with customers to understand how MLC can support their sustainability goals.
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