Exhibit 1.01

Hyliion Holdings Corp.

Conflict Minerals Report

for the Year Ended December 31, 2022

Introduction

Hyliion Holdings Corp. (also referred to as “the Company,” “we,” “our,” and “us”) is a Delaware corporation.

This Conflict Minerals Report (“CMR”) for the year ended December 31, 2022, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule imposes certain reporting obligations on U.S. Securities and Exchange Commission (“SEC”) issuers whose manufactured products contain certain minerals which are necessary to the functionality or production of their products. These minerals are cassiterite, columbite- tantalite (coltan), gold, wolframite, and their derivatives, which are limited to tin, tantalum and tungsten (“3TG” or “Conflict Minerals”). The Rule focuses on 3TG emanating from the Democratic Republic of Congo (“DRC”) region and nine adjoining countries (together, the “Covered Countries”). If an issuer has reason to believe that any of the Conflict Minerals in their supply chain may have originated in the Covered Countries, or if they are unable to determine the country of origin of those Conflict Minerals, then the issuer must exercise due diligence on the Conflict Minerals’ source and chain of custody and submit a CMR to the SEC that includes a description of those due diligence measures.

This CMR relates to the process undertaken for Hyliion products that were manufactured, or contracted to be manufactured, during calendar year 2022 and that contain Conflict Minerals.

Executive Summary

We performed a Reasonable Country of Origin Inquiry (“RCOI”) on suppliers we believe provided materials or components containing 3TGs necessary to the manufacturing of our products during calendar year 2022. Our suppliers identified 344 valid smelters and refineries (“Smelters”). Of these 344 Smelters, we identified 47 as sourcing (or there was a reason to believe they may be sourcing) from the Covered Countries. Our due diligence review indicated that 35 of these Smelters have been audited and recognized as conformant to the Responsible Minerals Assurance Process (“RMAP”). The remaining 12 Smelters potentially sourcing from the Covered Countries were subject to our risk mitigation process which is in accordance with the OECD Due Diligence Guidance for Responsible Supply Chain of Minerals from Conflict-Affected and High-Risk Areas (the “OECD Guidance”).

Company Management Systems

Hyliion established strong management systems based on Step 1 of the OECD Guidance.

https://s25.q4cdn.com/501989927/files/doc_downloads/Governance/2022/10/Revised-Code-of-Business-Conduct-and-Ethics-_-Revised-Effective_9-27-2022.pdf

Reasonable Country of Origin Inquiry (RCOI)

We designed our RCOI process in accordance with Step 2A and 2B of the OECD Guidance. Our RCOI process involved two stages:

For the 2022 reporting period, Hyliion’s RCOI process was executed by Claigan Environmental Inc. (“Claigan”).

Supplier RCOI

We designed our supplier RCOI process to identify the smelters in our supply chain. Our supplier RCOI process for the 2022 reporting period included:

Through the supplier RCOI process we identified 344 Smelters in our supply chain.

Smelter RCOI

Due to the overlap between smelter RCOI and smelter due diligence, the smelter RCOI process is summarized in the due diligence section of this report.

Due Diligence

Hyliion’s Due Diligence Process was designed in accordance with the applicable sections of Steps 2, 3, and 4 of the OECD Guidance.

For the 2022 reporting period, Hyliion’s smelter RCOI and Due Diligence process were executed by Claigan.

Smelter RCOI and Due Diligence

Hyliion’s smelter RCOI and due diligence processes were designed to meet the criteria of Step 2 of the OECD Guidance.

We engaged with each smelter identified in our supply chain to determine whether or not they sourced from the Covered Countries. For smelters that confirmed, either directly or through industry associations, that they did not source from the Covered Countries but who were not recognized as conformant to the RMAP, we reviewed publicly available information to determine whether there was any contrary evidence that contradicted the smelter’s declaration. In doing so we reviewed sources such as NGO publications, including the Enough Project, Global Witness, Southern Africa Resource Watch and Radio Okapi. We also consulted the most recent United Nations Group of Experts reports on the DRC and performed public internet searches.

If smelters did not respond to our inquiry, we reviewed the same publicly available sources to determine whether there was reason to believe the smelter may have sourced from the Covered Countries during the reporting period.

We categorize smelters that are sourcing (or that we have reason to believe may be sourcing) from the Covered Countries and not currently RMAP Conformant as high-risk. We conduct the risk mitigation procedures described below on all high risk smelters.

Our suppliers identified 344 unique smelters, of which 47 smelters source, or there is a reason to believe they may source, from the Covered Countries. We determined that 35 of these 47 smelters have been audited and recognized as conformant to the RMAP. We conducted risk mitigation on the remaining 12 smelters.

Risk Mitigation

Hyliion conducted risk mitigation on 12 Smelters that were not recognized as conformant to the RMAP and were sourcing (or there is a reason to believe they may be sourcing) from the DRC or surrounding countries. Hyliion’s risk mitigation was designed in accordance with Step 3B of the OECD Guidance and was reported to the Sr. Vice President of Sales and Supply Chain in accordance with Step 3A of the OECD Guidance.

As part of our risk mitigation process, we performed additional due diligence to determine if there was any reason to believe the smelters directly or indirectly financed or benefited armed groups in the DRC or adjoining countries. We also attempted to verify with relevant 15 suppliers whether 3TGs from the smelter in question were actually in Hyliion’s supply chain during the 2022 reporting period.

Hyliion will continue work with the 15 suppliers to determine if these refineries are legitimately in the supply chain of the parts and/or products Hyliion manufactures or contracts to manufacture and, if so, to take steps to remove them from our supply chain.

We did not require the removal of smelters if there was no reason to believe they were directly or indirectly financing or benefitting armed groups in the Covered Countries. These smelters are scheduled to be re-visited in the 2022 reporting period.

Improvement Plan

Hyliion is committed to continuous improvement in our due diligence process to further mitigate the risk that the 3TG materials in our products could directly or indirectly benefit or finance armed groups in the Covered Countries. As part of our efforts to mitigate this risk, new or renewed supplier contracts require suppliers to provide information that will allow us to evaluate their conflict mineral status. We will continuously improve our efforts to educate our suppliers, to increase supplier response rates and improve the timeliness, accuracy and comprehensiveness of the supplier survey responses we receive. Additionally, we will enhance our efforts to encourage our suppliers to source from RMAP conformant smelters when sourcing material from the Covered Countries.

Smelters and Refineries

Forty-seven of the 344 unique Smelters identified during our RCOI either declared that they were sourcing, or there was reason to believe were sourcing, from the Covered Countries. Based on the Smelters’ disclosures and the publicly available information, we have reason to believe these Smelters may be sourcing from the following Covered Countries: The Democratic Republic of the Congo, Rwanda, Burundi, Uganda, and Tanzania. Our due diligence review indicated that 35 of the 47 Smelters have been audited and recognized as conformant to the RMAP.

Additional Risk Factors

The statements included in this Conflict Minerals Report are based on the RCOI process and due diligence performed in good faith by Hyliion. These statements are based on the information available at the time. A number of factors could introduce errors or otherwise affect the accuracy of these statements.

These factors include, but are not limited to: (i) gaps in supplier or smelter data, (ii) errors or omissions by suppliers or smelters, (iii) uncertainty or varied interpretations of the disclosure requirements described in the SEC final rules, (iv) all instances of conflict minerals necessary to the functionality or manufacturing of our products may not have been reported correctly by our suppliers, (v) some suppliers and smelters are unfamiliar with the diligence process and information required to be provided, which could lead to inaccurate or incomplete responses, (vi) timeliness of data received from our suppliers, (vii) information that is in the public domain may not be discovered despite having conducted a reasonable search, (viii) there may be errors in publicly available information, (ix) language barriers or errors in translation could lead to inaccurate information, (x) there could be oversights or errors in conflict free smelter audits, (xi) materials sourced from the Covered Countries could be inaccurately declared as sourced from outside the Covered Countries, (xii) illegally tagged Conflict Minerals could be introduced into the supply chain without our knowledge or the knowledge of our suppliers, (xiii) difficulties obtaining information from companies that are no longer in business, and (xiv) smuggling of Conflict Minerals outside the Covered Countries may make identification of their origin more difficult.

This Specialized Disclosure Report on Form SD contains forward looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements include any plans or intentions to improve the number and quality of supplier and smelter response rates and steps we intend to take to mitigate risk in our supply chain. These forward- looking statements involve risks and uncertainties that could cause actual results to differ materially from those projected. In particular, the Company’s risk mitigation and improvement plans may be affected by: (a) changes in global regulations related to the extraction of and disclosure obligations related to conflict minerals; (b) the ability of our suppliers and smelters to provide accurate information in response to our requests; (c) the availability of alternate sources of materials necessary to the functionality or production of our products on commercially reasonable terms or at all; (d) the ability of certified smelters to meet demand for raw materials; and (e) limits on our ability to unilaterally influence supplier behavior. These forward- looking statements are made as of the date hereof and we assume no obligation to update such statements.