6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of July 2021

Commission File Number: 001-32570

Entrée Resources Ltd. (Translation of registrant's name into English)

Suite1650-1066 West Hastings St

Vancouver,BC, V6E 3X1 Canada

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  x        Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission fling on EDGAR.

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ¨         No x

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-__________.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

EXHIBIT LIST

Exhibit 99.1

Entrée Resources Files NI 43-101 Technical Report for its Interest in the Entrée/Oyu Tolgoi Joint Venture Property

VANCOUVER, BC, July 21, 2021 /CNW/ - Entrée Resources Ltd. (TSX: ETG) (OTCQB: ERLFF) – (the "Company" or "Entrée") is pleased to announce that it has today filed a National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI43-101") technical report ("Report") titled "Entrée/Oyu Tolgoi Joint Venture Project, Mongolia, NI 43-101 Technical Report" on its interest in the Entrée/Oyu Tolgoi joint venture property in Mongolia ("Entrée/OyuTolgoi JV Property"). The Report has an effective date of May 17, 2021 and is available on SEDAR at www.sedar.com and on the Company's website. The Report relates to the press release announced by the Company on June 15, 2021.

The Report discusses an updated Feasibility Study ("2021 Reserve Case") based on mineral reserves attributable to the Entrée/Oyu Tolgoi joint venture ("Entrée/OyuTolgoi JV") from the first lift ("Lift 1") of the Hugo North Extension copper-gold deposit. Lift 1 of Hugo North (including Hugo North Extension) is currently in development by project operator Rio Tinto as an underground block cave with first development production from Hugo North Extension expected in 2022. Entrée has a 20% or 30% participating interest (depending on the depth of mineralization) in the Entrée/Oyu Tolgoi JV with Oyu Tolgoi LLC ("OTLLC") holding the remaining 80% or 70% interest. The 2021 Reserve Case after-tax NPV(8%) for Hugo North Extension Lift 1 attributable to Entrée is US$114 million*.

The Report also includes a Preliminary Economic Assessment ("2021 PEA") on a conceptual second lift ("Lift 2") of the Hugo North Extension deposit. The 2021 PEA after-tax NPV(8%) for Hugo North Extension Lift 2 attributable to Entrée is US$306 million*. The 2021 PEA is based on Indicated and Inferred mineral resources from Lift 2 as the second potential phase of development and mining on the Hugo North Extension deposit. Production and cash flows from the 2021 Reserve Case and the 2021 PEA are from separate parts of the Hugo North Extension deposit and there is no overlap in the mineral reserves from the 2021 Reserve Case and the mineral resources from the 2021 PEA.

The Entrée/Oyu Tolgoi JV Property comprises a significant portion of the long-life, high-grade Oyu Tolgoi copper-gold mining project, as well as hosting several strong exploration prospects with the potential for near-surface porphyry and epithermal-style copper and/or gold mineralization. By 2030, Oyu Tolgoi is expected to be the fourth largest copper mine in the world.

*Long term metal prices used in the net presentvalue economic analysis are: copper US$3.25/lb, gold US$1,591.00/oz and silver US$21.08/oz.

The economic analysis in the 2021 PEA is based on a conceptual mine plan and does not have as high a level of certainty as the 2021 Reserve Case. The 2021 PEA is preliminary in nature and includes Inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the 2021 PEA will be realized. Mineral resources are not mineral reserves and do not have demonstrated economic viability.

Both the 2021 Reserve Case and the 2021 PEA are based on information supplied by OTLLC or reported within OTLLC's 2020 Oyu Tolgoi Feasibility Study ("OTFS20"). Neither OTFS20 nor the results of the 2021 Reserve Case and 2021 PEA reflect the impacts of the COVID-19 pandemic, which are ongoing and continue to be assessed by OTLLC. Reference should be made to the full body of the Report for the assumptions, qualifications and procedures underlying the reported results, which are not fully described herein.

The Report was completed independently by Wood Canada Limited.

QUALIFIED PERSON

Robert Cinits, P.Geo., formerly Entrée's Vice President, Corporate Development and now a consultant to the Company, is a Qualified Person as defined by NI 43-101 and has approved the technical information in this release.

ABOUT ENTRÉE RESOURCES LTD.

Entrée Resources Ltd. is a well-funded Canadian mining company with a unique carried joint venture interest on a significant portion of one of the world's largest copper-gold projects – the Oyu Tolgoi project in Mongolia.  Entrée has a 20% or 30% carried participating interest in the Entrée/Oyu Tolgoi JV, depending on the depth of mineralization. Sandstorm Gold Ltd., Rio Tinto and Turquoise Hill Resources Ltd. are major shareholders of Entrée, holding approximately 24%, 9% and 8% of the shares of the Company, respectively.  More information about Entrée can be found at www.EntreeResourcesLtd.com.

This News Release contains forward-looking statementswithin the meaning of the United States Private Securities Litigation Reform Act of 1995 and forward-looking information within the meaningof applicable Canadian securities laws with respect to corporate strategies and plans; the value and potential value of assets and theability of Entrée to maximize returns to shareholders; timing and status of Oyu Tolgoi underground development; the expected timingof first development production from Lift 1 of the Entrée/Oyu Tolgoi JV Property; the future prices of copper, gold and silver;the estimation of mineral reserves and resources; the realization of mineral reserve and resource estimates; projected mining and processrecovery rates; estimates of capital and operating costs, mill throughput, cash flows and mine life; anticipated business activities;and future financial performance.

In certain cases, forward-looking statements andinformation can be identified by the use of words such as "plans", "expects" or "does not expect", "isexpected", "budgeted", "scheduled", "estimates", "forecasts", "intends", "anticipates",or "does not anticipate" or "believes" or variations of such words and phrases or statements that certain actions,events or results "may", "could", "would", "might", "will be taken", "occur"or "be achieved". While the Company has based these forward-looking statements on its expectations about future events as atthe date that such statements were prepared, the statements are not a guarantee of Entrée's future performance and are based onnumerous assumptions regarding present and future business strategies; the correct interpretation of agreements, laws and regulations;local and global economic conditions and negotiations and the environment in which Entrée will operate in the future, includingcommodity prices, projected grades, projected dilution, anticipated capital and operating costs, anticipated future production and cashflows, and the anticipated location of certain infrastructure and sequence of mining within and across panel boundaries; the constructionand continued development of the Oyu Tolgoi underground mine; and the status of Entrée's relationship and interaction with theGovernment of Mongolia, OTLLC, Rio Tinto and Turquoise Hill Resources Ltd.

• Withrespect to the construction and continued development of the Oyu Tolgoi underground mine, important risks, uncertainties and factorswhich could cause actual results to differ materially from future results expressed or implied by such forward-looking statements andinformation include, amongst others, the timing and cost of the construction and expansion of mining and processing facilities; the timingand availability of a long term domestic power source for Oyu Tolgoi (or the availability of financing for OTLLC or the Government ofMongolia to construct such a source); the willingness of third parties to extend existing power arrangements; the potential impact ofCOVID-19, including any restrictions imposed by health and governmental authorities relating thereto; the implementation and successfulexecution of the funding plan that is the subject of a Heads of Agreement between Rio Tinto and Turquoise Hill Resources and the amountof any additional future funding gap to complete the Oyu Tolgoi underground project as well as the amount and potential sources of additionalfunding required therefor, all as contemplated by the Heads of Agreement; the impact of changes in, changes in interpretation to or changesin enforcement of, laws, regulations and government practices in Mongolia; delays, and the costs which would result from delays, in thedevelopment of the underground mine; the status of the relationship and interactions and discussions between OTLLC, Rio Tinto and TurquoiseHill Resources Ltd. with the Government of Mongolia on the continued operation and development of Oyu Tolgoi and OTLLC internal governance(including the outcome of any such interactions or discussions); the willingness and ability of the parties to the Oyu Tolgoi InvestmentAgreement and the 2015 Oyu Tolgoi Underground Mine Development and Financing Plan to amend or replace either such agreement; the natureand quantum of the current and projected economic benefits to Mongolia resulting from the continued operation of Oyu Tolgoi; the anticipatedlocation of certain infrastructure and sequence of mining within and across panel boundaries; projected commodity prices and their marketdemand; and production estimates and the anticipated yearly production of copper, gold and silver at the Oyu Tolgoi underground mine.
• The 2021 PEA is based on aconceptual mine plan that includes Inferred resources. Numerous assumptions were made in the preparation of the 2021 PEA, including withrespect to mineability, capital and operating costs, production schedules, the timing of construction and expansion of mining and processingfacilities, and recoveries, that may change materially once production commences at Hugo North Extension Lift 1 and additional developmentand capital decisions are required. Any changes to the assumptions underlying the 2021 PEA could cause actual results to be materiallydifferent from any future results, performance or achievements expressed or implied by forward-looking statements and information relatingto the 2021 PEA.

Other risks, uncertainties and factors which couldcause actual results, performance or achievements of Entrée to differ materially from future results, performance or achievementsexpressed or implied by forward-looking statements and information include, amongst others, unanticipated costs, expenses or liabilities;discrepancies between actual and estimated production, mineral reserves and resources and metallurgical recoveries; development plansfor processing resources; matters relating to proposed exploration or expansion; mining operational and development risks, including geotechnicalrisks and ground conditions; regulatory restrictions (including environmental regulatory restrictions and liability); risks related tointernational operations, including legal and political risk in Mongolia; risks related to the potential impact of global or nationalhealth concerns, including the COVID-19 (coronavirus) pandemic; risks associated with changes in the attitudes of governments to foreigninvestment; risks associated with the conduct of joint ventures; inability to upgrade Inferred mineral resources to Indicated or Measuredmineral resources; inability to convert mineral resources to mineral reserves; conclusions of economic evaluations; fluctuations in commodityprices and demand; changing foreign exchange rates; the speculative nature of mineral exploration; the global economic climate; dilution;share price volatility; activities, actions or assessments by Rio Tinto, Turquoise Hill Resources Ltd. or OTLLC and by government authoritiesincluding the Government of Mongolia; the availability of funding on reasonable terms; the impact of changes in interpretation to or changesin enforcement of laws, regulations and government practices, including laws, regulations and government practices with respect to mining,foreign investment, royalties and taxation; the terms and timing of obtaining necessary environmental and other government approvals,consents and permits; the availability and cost of necessary items such as water, skilled labor, transportation and appropriate smeltingand refining arrangements; unanticipated reclamation expenses; changes to assumptions as to the availability of electrical power, andthe power rates used in operating cost estimates and financial analyses; changes to assumptions as to salvage values; ability to maintainthe social license to operate; accidents, labor disputes and other risks of the mining industry; global climate change; title disputes;limitations on insurance coverage; competition; loss of key employees; cyber security incidents; misjudgments in the course of preparingforward-looking statements; and those factors discussed in the section entitled "Critical Accounting Estimates, Risks and Uncertainties"in the Company's most recently filed Management's Discussion & Analysis and in the section entitled "Risk Factors" in theCompany's Annual Information Form for the year ended December 31, 2020 filed with the Canadian Securities Administrators and availableat www.sedar.com. Although the Company has attempted to identify important factors that could cause actual actions, events or resultsto differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or resultsnot to be as anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate,as actual results and future events could differ materially from those anticipated in such statements. Except as required under applicablesecurities legislation, the Company undertakes no obligation to publicly update or revise forward-looking statements, whether as a resultof new information, future events, or otherwise. Accordingly, readers should not place undue reliance on forward-looking statements.

View original content:https://www.prnewswire.com/news-releases/entree-resources-files-ni-43-101-technical-report-for-its-interest-in-the-entreeoyu-tolgoi-joint-venture-property-301338945.html

SOURCE Entrée Resources

View original content: http://www.newswire.ca/en/releases/archive/July2021/21/c9991.html

%CIK: 0001271554

For further information: David Jan, Investor Relations, Entrée Resources Ltd., Tel: 604-687-4777 | Toll Free: 1-866-368-7330, E-mail: djan@EntreeResourcesLtd.com

CO: Entrée Resources

CNW 16:30e 21-JUL-21