Specialized Disclosure Report (Form SD)

OTIS WORLDWIDE CORPORATION

Conflict Minerals Report

For the Year Ended December 31, 2025

1. Introduction

Otis Worldwide Corporation ("Otis") has prepared this Conflict Minerals Report (the "Report") for the calendar year ended December 31, 2025, as required by Rule 13p-1 under the Securities Exchange Act of 1934 (the "Rule"). Terms used and not defined in this Report have the meanings ascribed in Form SD, as adopted by the Securities and Exchange Commission ("SEC") pursuant to the Rule. References in this Report to internet websites and certain of Otis' internal policies and procedures are provided for convenience only. Documents and information available on our website or otherwise linked or referred to in this Report, including any content on our own website and our internal policies and procedures, are not incorporated by reference into this Report or our Form SD.

2. Company Overview

Otis is the world's leading elevator and escalator manufacturing, installation, service and modernization company. We serve customers in over 200 countries and territories around the world. Otis has global scale and local focus, with over 1,400 branches and offices, and a direct physical presence in more than 70 countries. Our Company is organized into two segments, New Equipment and Service. Through our New Equipment segment, we design, manufacture, sell and install a wide range of passenger and freight elevators, as well as escalators and moving walkways for residential, commercial and infrastructure projects. Our New Equipment customers include real estate and building developers and general contractors who develop and/or design buildings for residential, commercial, retail or mixed-use activity. We also sell New Equipment to government agencies, particularly, to support infrastructure projects, such as airports, railways or metros. Through our Service segment, we perform maintenance and repair services, as well as modernization services to upgrade elevators and escalators. Service customers typically comprise building owners, facility managers, housing associations and government agencies that operate buildings where elevators and escalators are installed.

Additional information about Otis is included in Otis' Annual Report and Form 10-K for the year ended December 31, 2025.

Otis manufactures and contracts to manufacture products that contain tin, tantalum, tungsten, and gold ("3TG" or "Conflict Minerals") necessary to the functionality or production of such products ("Necessary 3TG").

3. Supply Chain Description

Otis is a large and complex organization with thousands of globally dispersed suppliers. There are multiple tiers of suppliers between Otis and the 3TG mines. Therefore, we rely on our first-tier suppliers to work with their upstream suppliers to provide us with accurate information (e.g., through the reasonable country of origin inquiry described below) about the origin of 3TG contained in the materials, components, parts, subassemblies, and products contracted to be manufactured (collectively "Components") we purchase.

4. Reasonable Country of Origin Inquiry ("RCOI") Process

The elements of our RCOI were: (i) identification of suppliers to survey, (ii) data collection, and (iii) assessment of data to determine whether further due diligence is required.

For this reporting period, we used a risk-based approach, described below, to identify suppliers to survey for purposes of the RCOI ("Surveyed Suppliers"). The criteria for selecting the suppliers considered the likelihood of 3TG content in the supplied Components and the amount paid to suppliers believed likely to incorporate 3TG in the supplied Components.

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We collected information from the Surveyed Suppliers using Responsible Minerals Initiative's ("RMI") Conflict Minerals Reporting Template ("CMRT"). The survey included questions regarding whether the supplier's products contain 3TG, its policy with respect to conflict-free sourcing, the supplier's due diligence process, and information about the supplier's supply chain, such as the names of the smelters or refiners that processed 3TG in the supplier's products, and the origin of 3TG used by those facilities.

Based on our review of these survey responses we have reason to believe that some of our suppliers sourced 3TG from the Covered Countries (Democratic Republic of Congo and the adjoining countries), and that Necessary 3TG may not be from recycled or scrap sources. Accordingly, we conducted the due diligence described below.

5. Due Diligence

A. Due Diligence Framework

Our due diligence measures have been designed to conform, in all material respects, with the internationally recognized due diligence framework presented by the Organisation for Economic Co-operation and Development ("OECD") in the publication: OECD (2016), OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas: Third Edition, OECD Publishing, Paris (http://dx.doi.org/10.1787/9789264252479-en), OECD Publishing and related supplements for gold, tin, tantalum, and tungsten.

B. Due Diligence Measures Undertaken

We performed the due diligence steps set forth below according to the OECD's five-step framework:

OECD Step 1: Establish Company Management Systems

Policies

Otis has a Supplier Code of Conduct ("Code") and a Conflict Minerals policy that outline our expectation of our Suppliers regarding the sourcing of Conflict Minerals, including an obligation to comply with the Rule and to support Otis in fulfilling its obligations under the Rule. Otis Suppliers agree to comply with the Code and the Conflict Minerals policy through our standard Terms and Conditions of Purchase. Otis reserves the right to terminate contracts with suppliers that commit any violation of law relating to the Rule or other human rights violations. The Code is available in multiple languages and is published on our website, along with the Conflict Minerals policy as follows:

•Supplier Code of Conduct (https://www.otis.com/en/us/supplier-code-of-conduct)

•Conflict Minerals policy governing the Otis Supply Chain (https://www.otis.com/documents/d/otis-2/conflict-minerals-policy)

Governance

Otis established a cross-functional team to execute and advance its Conflict Minerals compliance program ("Program"). The Conflict Minerals team is composed of representatives from functions such as Supply Chain Management and Legal, including International Trade Compliance. The governance model is more fully described in our Form 10-K for the year-end December 31, 2025 under the section titled Sustainability and Responsibility.

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Supply Chain Controls and Transparency

Otis participates in industry-wide initiatives that raise awareness for responsible sourcing of 3TG and provide resources to improve disclosures regarding the origin of 3TG in supply chains. For example, Otis is a member of the RMI (member code: 7355). The RMI's flagship program is the Responsible Minerals Assurance Process ("RMAP"), through which the RMI identifies smelters and refiners that produce responsibly sourced materials in an effort to prevent the extraction and trade of minerals from becoming a source of human rights violations and conflict. The RMI uses specially trained third-party auditors to independently verify that the identified smelters and refiners have systems in place to responsibly source minerals in conformance with the RMAP. Another RMI program is the development and publication of the CMRT, a standardized reporting template that facilitates the transfer of information through the supply chain regarding 3TG country of origin as well as the smelters and refiners that process such 3TG.

Supplier Engagement

Supplier engagement is critical to the success of our due diligence efforts. As such, we provide Surveyed Suppliers with a message about the Rule and our expectations of how our suppliers will help us to comply with this law. Otis provides Surveyed Suppliers with instructions for responding to our survey and an e-mail address for assistance in interpreting and completing it.

We ask Surveyed Suppliers, to the extent they believe the products delivered to Otis may contain 3TG originating from one of the Covered Countries and to provide 3TG information specific to such products (i.e., a "product-level" CMRT declaration).

Maintain Records

Otis has adopted a policy to retain relevant documentation.

Grievance Mechanisms

General questions regarding the Program can be directed to Otis' Supply Chain leaders. We maintain third-party managed, public-facing platforms for those who wish to report indirectly or anonymously, including a 24/7 hotline with translators available, and a web-based form. Otis colleagues can access these channels both internally and externally. These anonymous reporting channels are also available via our website to other stakeholders, such as our suppliers, subcontractors, customers, and the general public (https://www.otis.com/en/us/our-company/ethics-compliance/reporting-channels).

In addition, our Code requires suppliers to promptly notify Otis if they suspect or become aware of misconduct related to Otis business using these same reporting channels. Suppliers are further required to facilitate the timely discovery, investigation, and reporting of actual or suspected misconduct and implement appropriate corrective actions.

OECD Step 2: Identify and Assess Risks in the Supply Chain

Identifying Inherent Risk and Conducting Due Diligence

To assess the inherent risk in our Conflict Minerals supply chain, we begin with an Engineering assessment of the likelihood of Necessary 3TG in our Components. We then use a risk-based approach to conduct additional due diligence beginning with a supplier survey. While we focus on the suppliers who provide Components with the highest likelihood of containing Necessary 3TG, we also take into consideration the suppliers who provide Components with less likelihood.

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The selected suppliers are surveyed using the CMRT to investigate the origin of Necessary 3TG. Members of the Otis Conflict Minerals team review the Surveyed Suppliers' responses against an established set of criteria to determine whether further due diligence is necessary. For example, if a supplier advised that it supplied Components containing 3TG from any of the Covered Countries, we compare the smelters and refiners identified in the supplier's survey response to the RMI published list of smelters and refiners that conform to the RMAP assessment protocols.

Due diligence is a critical supplement to our inherent risk assessment and as such, to ensure a reasonable survey response rate, suppliers who do not respond to our survey receive multiple reminders to submit their survey responses. In addition, members of Otis' Supply Chain and Conflict Minerals teams ask contacts at non-responsive suppliers for their assistance in resolving overdue survey responses.

At the conclusion of the survey, we analyze the results and assess improvement opportunities for the Program.

Training

Otis developed training and reference materials for its employees about Conflict Minerals, summarizing the relevant requirements of the Rule, Otis' obligations under the Rule, and processes for evaluating and responding to the risk. We require our suppliers to provide regular training to their employees and to conduct reasonable due diligence to ensure compliance with the Code. We also support Surveyed Suppliers with training on Conflict Minerals upon request.

OECD Step 3: Design and Implement a Strategy to Respond to Identified Risks

If we identify risk, which may include but is not limited to a supplier's non-compliance with our corporate policy on the sourcing of Conflict Minerals, we attempt to work with the supplier to correct the situation. A supplier's failure to take corrective actions may lead to additional actions, including the reassessment of the supplier relationship. Risk assessment findings based on the supply chain survey and due diligence are reported to senior management.

OECD Step 4: Carry out Independent Third-Party Audit of Smelter's and Refiner's Due Diligence Practices

We support audits of smelters and refiners through our participation in, and financial support of, the RMI. The RMI's flagship program is RMAP which uses independent third-party auditors to identify smelters and refiners that have systems in place to produce responsibly sourced materials. We do not perform direct audits of these entities within our supply chain.

OECD Step 5: Report Annually on Supply Chain Due Diligence

A copy of this Report and Otis' associated Form SD are available on our website under SEC Filings (https://www.otisinvestors.com/financials/sec-filings).

6. Efforts to Determine Mine or Country of Origin

Our supply chain survey, the CMRT, asks the Surveyed Suppliers about their use of 3TG and, if the supplier confirmed use of 3TG, then we ask for the name of the smelter(s) in their supply chain, the name of the mine(s), and the location of the mine(s) from where 3TG in their supply chain originated.

We rely on our suppliers to provide information on the origin of 3TG contained in the Components purchased by Otis. These suppliers are similarly reliant upon information provided by their suppliers.

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7. RCOI and Due Diligence Results

A. Survey Responses

In total, Otis sent 342 suppliers a survey, estimated to represent 78% of Otis' direct product spend. Of the 342 surveys sent, we received 311 responses, representing a response rate of 91%.

Of the 311 supplier responses, 14 (4%) declared they sourced 3TG from one or more of the Covered Countries. Based on the survey responses and the due diligence measures our suppliers indicated they sourced 3TG from the smelters listed on Schedule A with the countries of origin listed on Schedule B.

Following applicability screening and alignment with the RMI standard, 332 smelters or refiners were determined to be eligible to undergo assessment. Of these 332 smelters or refiners, 76% are conformant to RMAP or actively undergoing assessment. This compares to 74% conformance or actively undergoing assessment last year. We notified the Surveyed Suppliers who included non-conformant smelters or refiners on their CMRT of our expectation for them to use RMAP conformant smelters. We will continue to engage with our direct suppliers and RMI to monitor the RMAP with an objective of transitioning to a higher conformant ratio.

Due to the multiple tiers of suppliers between Otis and the 3TG mines, a CMRT with product-level detail typically is not feasible for the Surveyed Suppliers to provide. As such, despite our due diligence for this reporting period, we were unable to confirm if our Components contain Necessary 3TG sourced from the Covered Countries. We were unable to do so because the information provided was generally at a supplier-company level that described the supplier's overall potential 3TG sourcing. Of the remaining survey responses providing smelter information, the suppliers were unable to verify whether 3TG from those smelters was used in the Components supplied to Otis. For this reason, with the exception of the smelters described above, we have been unable to identify with confidence the specific facilities used to process Necessary 3TG in our products, the country of origin, or the mine or location of origin of the Necessary 3TG in our products.

B. Continuous Improvement Efforts to Mitigate Risk

Otis has taken, or intends to take the following steps to improve the due diligence conducted to further mitigate risks associated with the Necessary 3TG used in our Components:

•Complete the in-progress due diligence with our Surveyed Suppliers

•Continue our participation with RMI, and other trade association and/or industry-wide initiatives to identify opportunities for advancing our Program

•Encourage our suppliers who source 3TG from one of the Covered Countries to do so from smelter(s) or refiner(s) validated as conformant with the RMAP

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