Exhibit 1.01

Allegion plc

Conflict Minerals Report

for the reporting period January 1 to December 31, 2024

Background

This Conflict Minerals Report on Form SD of Allegion plc (“Allegion,” “we,” “us” or the “Company”) for the year ended December 31, 2024, was prepared pursuant to Rule 13p-1 and Form SD (collectively, the “Rule”) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

The Rule requires disclosure of certain information when a public company manufactures or contracts to manufacture products that contain “conflict minerals” (as defined in the Rule) that may have originated in the Democratic Republic of the Congo (“DRC”) and its adjoining countries (the “Covered Countries”). As defined by the Rule, and for the purposes of this report, the conflict minerals are columbite-tantalite (coltan), cassiterite, gold and wolframite, including their derivatives, which are currently limited to tantalum, tin and tungsten (collectively, “conflict minerals” or “3TGs”).

Web links in this report are provided for convenience only. Content on, or that may be accessed through, the referenced websites is not incorporated by reference into and is not part of this filing.

Forward-Looking Statements

Certain statements in this report are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are based on the Company’s currently available information and our current assumptions, expectations and projections about future events. They are subject to future events, risks and uncertainties - many of which are beyond the Company’s control - as well as potentially inaccurate assumptions, that could cause actual results to differ materially from those in the forward-looking statements. Further information on these factors and other risks that may affect the Company’s business is included in filings it makes with the SEC from time to time, including under the headings “Item 1A. Risk Factors” and “Item 7. Management’s Discussion and Analysis of Financial Conditions and Results of Operations” in its Annual Report filed on Form 10-K for the year ended December 31, 2024, and any Quarterly Report filed on Form 10-Q, Current Report on Form 8-K, or other SEC filing that contains updates thereto. Forward-looking statements included herein are made only as of the date hereof and the Company undertakes no obligation to update these forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Company Overview

Allegion is a leading global provider of security products and solutions that keep people and their assets safe and secure in the places they live, learn, work and connect. We pioneer safety and security to create a safer and more accessible world. Central to our work is partnering and developing ecosystems to create flawless, seamless access experiences and enable an uninterrupted and secure flow of people and assets. We offer an extensive and versatile portfolio of security and access control products and solutions across a range of market-leading brands. Our experts across the globe deliver high-quality hardware, software, services and systems, and we use our deep expertise to serve as trusted partners to end-users who seek customized solutions to their security needs.

Product Description

The following categories of electronic and other products we manufacture or contract to manufacture may contain conflict minerals that are necessary to the functionality or production of such products:

For further information about our products, please refer to “Item 1. Business — Products and Services” of our Annual Report on Form 10-K for the year ended December 31, 2024, which is incorporated herein by reference.

Conflict Minerals Program Overview

Allegion is many layers removed from the mining of conflict minerals, and we do not directly purchase raw ore or unrefined conflict minerals. We rely on collaboration with our supplier base by building awareness through training and provide support to identify the upstream supply chain and the originating smelter(s)/refiner(s) for the conflict minerals that ultimately are found in our products.

This effort is both challenging and demanding, as many of our suppliers are private entities that are not directly affected by the Rule, and many times do not have the financial and human resources to comply with the requests. Furthermore, our suppliers have their own supply chains and need to collaborate with their own upstream suppliers in order provide transparency of the end-to-end supply chain and to identify the smelter(s)/refiner(s).

Reasonable Country of Origin Inquiry

We conducted a reasonable country of origin inquiry (“RCOI”) regarding the conflict minerals by utilizing the conflict minerals reporting template (“CMRT”) provided by the Responsible Business Alliance (“RBA”) through its Responsible Minerals Initiative (“RMI”). Our RCOI was designed to determine whether any of the conflict minerals in the products we manufacture or contract to manufacture originated in the Covered Countries or were from recycled or scrap sources by asking our suppliers to identify the smelters and refiners of the conflict minerals contained in the products or raw materials that they supply to us. We reviewed the information our suppliers provided and compared it to publicly available information about such smelters and refiners.

OECD Due Diligence Framework in Practice

We designed our due diligence measures to conform, in all material respects, with the framework in The Organisation for Economic Co-operation and Development (“OECD”) Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas (Third Edition) and the related supplements for gold, tin, tantalum and tungsten (the “OECD Guidance”). The OECD Guidance identifies five steps for due diligence that should be implemented and provides guidance as to how to achieve each step. We developed our due diligence process to address each of these five steps, namely: (1) establishing strong company management systems regarding conflict minerals; (2) identifying and assessing risks in our supply chain; (3) designing and implementing a strategy to respond to identified risks in our supply chain; (4) utilizing independent third-party audits of supply chain diligence; and (5) publicly reporting on our supply chain due diligence.

The OECD Guidance specifies that the requirements for compliance should reflect a company’s position in the supply chain. In particular, the OECD Guidance states that the implementation of due diligence should be tailored to a company’s activities and relationships and that the nature and extent of due diligence may vary based on a company’s size, products, relationships with suppliers and other factors. Due to practical difficulties associated with supply chain complexities, the OECD Guidance advises that downstream companies exercise due diligence primarily by establishing controls over their immediate suppliers. Accordingly, we rely primarily on our strategic, direct suppliers to provide information with respect to the origin of the conflict minerals contained in the components and materials supplied to us.

STEP 1: Establish Strong Company Management Systems

Company Conflict Minerals Policy

Our policy is to support the legitimate businesses within the Covered Countries, and we expect our suppliers to source conflict minerals responsibly by establishing conflict minerals compliance policies and a due diligence process to support their conflict minerals data collection efforts.

Our Conflict Minerals Policy is available at: https://www.allegion.com/corp/en/about/ESG/environmental/conflict-minerals.html.

Internal Team

Our conflict minerals program is designed to conform to the internationally recognized due diligence framework of the OECD. The framework includes standard operating procedures, supplier risk segmentation, established processes for RCOI, due diligence and escalation, training and communication, as well as a website containing our Conflict Minerals Policy with information about the regulation, contact information and the latest Form SD filing.

We have a global supply chain compliance team that reports up to the Vice President - Global Supply Chain & Operations Support. This team focuses on driving the compliance efforts of the conflict minerals program, executing the procedures, working closely with a third-party regulatory compliance consulting firm to advance the maturity and sophistication of the program, and further strengthening the conformance with the OECD Guidance and standards. Our continued conflict minerals program maturity progress can be attributed to several successfully executed initiatives:

We collaborate closely with our suppliers by developing long-lasting relationships. Our supplier development team has the responsibility to qualify and develop our suppliers. This team conducts periodic reviews of our Global Supplier Requirements Manual, which lays out the Company’s expectations of suppliers with respect to compliance with local, state and national regulations, including conflict mineral requirements.

Further, we have a dedicated commodity management team responsible for maintaining relationships with suppliers within their assigned commodities. This team also monitors supplier performance and selectively manages strategic relationships with preferred suppliers to help preserve the stability and longevity of the supplier relationships. Our supplier contracts contain a regulatory clause that explicitly lays out the expectations with the suppliers to comply with laws, including the Rule, and allows our company to audit and inspect data, records and other materials to evidence conflict minerals use and controls.

Per the OECD Guidance, we retain and maintain our records for a period of five years on an internal Company network. These records are also stored in our third-party software system, and we will continue to leverage this system for record keeping purposes.

Reporting Mechanism

As part of our continuing efforts to ensure lawful and ethical behavior, the Allegion Code of Conduct (the “Code”), applicable to all officers, directors and employees of Allegion, and the Allegion Business Partner Code of Conduct (the “Business Partner Code”), applicable to Allegion’s agents, distributors, dealers, contractors, suppliers, vendors, service providers, intermediaries, joint venture partners and other business partners, provide guidance on reporting legal and ethical questions or concerns.

The Code and the Business Partner Code are available at: https://www.allegion.com/corp/en/about/ESG/governance/ethics-and-compliance-program.html.

A variety of options are available for employees and business partners to ask questions, or report concerns regarding ethics and compliance.

Employees

As set forth in the Code, employees may contact their manager, local management, their local Human Resources partner, the Allegion Legal Department, the Chief Compliance Officer or the Ethics HelpLine (“HelpLine”). Specific instructions for contacting these resources are provided in the Code. Employees contacting the HelpLine may choose to remain anonymous if consistent with applicable local law. The HelpLine is available 24/7 and is staffed by an independent organization. The Code also prohibits retaliation against individuals asking questions or raising concerns.

Business Partners

The Business Partner Code states business partners who wish to seek guidance or report concerns in the ethics and compliance area may send an email to Allegion, submit a report to Allegion via the Internet, send a letter to Allegion by mail or contact the HelpLine. Specific instructions and information (such as email, internet and mailing addresses, and U.S. and international HelpLine phone numbers) on reporting using each of these resources is provided in the Business Partner Code.

STEP 2: Identify and Assess Risks in Our Supply Chain

Scope Identification

Due to our size, the complexity of our products, and the depth, breadth and constant evolution of our supply chain, it is difficult to identify actors upstream from our direct suppliers. Risks are identified by Assent Compliance (“Assent”), our third-party service provider, and members of our internal conflict minerals team who contact the supplier, gather pertinent data and perform an assessment of the supplier’s conflict minerals status.

Ongoing concerns are related to gaps in information from CMRT responses which did not provide product specific CMRT information (instead providing company-wide or divisional level information that is not directly relevant to products manufactured by Allegion) or were unable to specify the smelters or refiners used for 3TGs in the components supplied to Allegion. Additionally, for our suppliers who indicated they received 50% or less of their suppliers’ CMRTs, their corresponding list of smelters or refiners was not comprehensive.

Based on historical supply chain information, we performed a risk-based approach in our due diligence that included:

Following our risk-based approach, we do not prioritize outreach to suppliers in the No Concern/Out of Scope category who consistently stated they did not use conflict minerals in products furnished to Allegion and instead focus our efforts on suppliers more likely to have conflict minerals in their products.

Execution

We retained Assent to oversee our 2024 CMRT campaign. Assent initiated the campaign with a communication to our supply base authorizing Assent to solicit information from our suppliers. Next, Assent distributed a “campaign kick-off” letter in multiple languages that laid out the timing of the campaign, the process and expectations. Following the campaign kick-off, Assent provided each supplier with: Allegion’s Conflict Minerals Policy; information about the conflict minerals regulations; training materials for the program and CMRT form (version 6.4); Allegion contact information and conflict minerals website; and the CMRT response deadline. Assent also assisted us with the smelter review and country-of-origin determination for the data we collected during our due diligence and supplier campaign.

We followed this pre-established process for all selected suppliers with reminders to complete and return the CMRT and validated the CMRT responses for completion and accuracy. In addition, we followed an escalation process for all suppliers who failed to timely complete and return the CMRT or who provided incomplete or inconsistent responses which included alternative communication medium (e.g., phone calls or emails from private accounts as opposed to company accounts), leveraging the commodity managers (including local commodity managers in other regions of the world) who had established relationships with the suppliers and online research of the suppliers to see if they provided any public information regarding conflict minerals (e.g., policy or Form SD filing).

Assent validated the smelter information provided by the suppliers using the most recent smelter and refinery validation list from the Responsible Minerals Initiative (RMI). Before the validation, the lists were reviewed and scrubbed for errors.

Assent reviewed the list to identify smelters/refiners that were participating in the Responsible Minerals Assurance Process (“RMAP”), while a risk-based assessment was also performed on the remaining smelters/refiners to determine which suppliers posed increased risks in the supply chain.

Assent used numerous factors to determine the level of risk that each smelter/refiner posed to the supply chain by identifying red flags. These factors include:

Based on these criteria, Assent identified certain third-party facilities in the received CMRT responses as smelters or refiners of Interest, including the following that are not identified as “Conformant” or “Active” by RMI:

Through Assent, submissions that included any of the above facilities immediately produced a response instructing the supplier to take their own risk mitigation actions, including submission of a product specific CMRT to better identify the connection to components or products that they supply to us, if any, and escalating up to removal of these smelters of interest from their supply chain. Information about these smelters/refiners lacked a chain of custody and therefore were insufficient to tie 3TGs from one or more of these smelters directly to products supplied to Allegion.

Additionally, suppliers were evaluated on program strength (further assisting in identifying risk in the supply chain). Evaluating and tracking the strength of the program meets the OECD Guidance and can assist in making key risk mitigation decisions as the program progresses.

The criteria used to evaluate the strength of the program were based on these four questions in the CMRT:

When suppliers met or exceeded those criteria (by responding “Yes” to each of the above questions), they were deemed to have a strong program. When suppliers did not meet those criteria, they were deemed to have a weak program. As of April 4, 2025, 23.61% of our responsive suppliers were identified as having a “strong” program and 7.87% were identified as having a “weak” program. The remaining suppliers claimed no 3TGs.

STEP 3: Design and Implement a Strategy to Respond to Identified Risks

We provide periodic reports on the progress of our campaign process to our internal leadership. On an annual basis, we provide an update to the Executive Leadership Team about our conflict minerals program and have a separate meeting with senior leadership where we review the process, efforts, challenges, milestones and results before the final Form SD report is filed with the SEC.

We have also established a supplier risk management process that evaluates many factors and determines the next steps for concerning suppliers (including any need for renegotiation of supplier terms, termination of supplier relationships, creation of a remediation plan, etc.). Declarations (CMRTs) look retrospectively at materials procured throughout the calendar year and at the time a CMRT is provided, material from smelters may already be part of the Company’s supply chain and products. Requests for immediate removal of a smelter of concern from the CMRT and supply chain may not be practical but may inform future purchases. The CMRT must accurately reflect past sourcing in order to support appropriate, ongoing due diligence and monitor changes over time.

As minerals and metals are durable goods, production may include feedstock purchased several months prior. As a result, high-risk or inoperative smelters may continue to appear on downstream CMRTs even if upstream suppliers no longer engage in business with these smelters. In many cases, this accurately reflects the continued downstream use of metal originally processed by these smelters in the past, either before smelter risks were identified or before smelter operations ceased. We are working with Assent and our suppliers to identify these situations and work to ensure that our suppliers cease doing business with high-risk smelters/refiners or encourage such smelters/refiners to participate in RMI and undergo an RMAP assessment and audit.

STEP 4: Utilize Independent Third-Party Audits of Supply Chain Diligence Practices

While we do not have a team of resources to independently audit the smelters/refiners within our supply chain, we have partnered with Assent, a third-party software and regulatory consulting company, who performs verification activities of smelters/refiners across the globe as part of their business services for Allegion. We also rely on RMAP, which performs third-party audits of smelters/refiners and certifies their status.

STEP 5: Publicly Report on Supply Chain Due Diligence

We have made continual progress in our risk assessment and due diligence related to conflict minerals. While progress has been made, we were unable to determine with certainty that all the conflict minerals contained in our products are from conflict-free sources due to, among other things, the following:

As a result, we do not have sufficient information to conclusively determine the country-of-origin of all the conflict minerals in our products and, if such conflict minerals did originate in the Covered Countries, whether such conflict minerals were from recycled or scrap sources or were from other conflict-free sources.

2024 Results

For 2024, we received responses representing approximately 85% of the supplier spend surveyed. We received 314 CMRTs. Of those received, 310 were validated as complete and provide the basis for our list of Reported Entities. Based on the due diligence process described herein and the information provided by our suppliers, we believe, to the extent reasonably determinable by us, that the facilities used to process the conflict minerals in our products or the other sources of the conflict minerals in our products consist of the following 343 entities (listed in the Reported Entities section), and that we have categorized as follows:

“RMAP Conformant” means the smelter has successfully completed a RMAP audit and maintains good standing in the program, through a continual validation process. These smelters or refiners have the systems and processes in place to support responsible sourcing of raw materials and can provide evidence to support their sourcing activities.

Due Diligence Determination

For the reasons stated in this report, we do not have sufficient information to conclusively determine the country-of-origin of all the conflict minerals in our products and, if such conflict minerals did originate in the Covered Countries, whether such conflict minerals were from recycled or scrap sources or were from other conflict-free sources.

We have provided this information as of the date of this report. Subsequent events, such as the inability or unwillingness of any suppliers, smelters or refiners to provide us with complete information, may affect our future determinations under the Rule.

Independent Private Sector Audit

As permitted by the Rule and the SEC’s guidance with respect thereto, we did not obtain an independent private-sector audit of this Conflict Minerals Report.

Future Initiatives

We continue to execute several initiatives to enhance our conflict minerals program, such as:

Reported Entities

The below table contains a list of confirmed smelters and refiners included in the CMRTs submitted by our suppliers.