Exhibit 4.2 AMENDED AND RESTATED ASSET PURCHASE AGREEMENT THIS AGREEMENTmade as of the 14th day of February, 2017. BETWEEN: REGI U.S., a
corporation pursuant to the laws of the State of Oregon. (the Purchaser) AND: REG TECHNOLOGIES INC., a
corporation pursuant to the laws of the Province of British Columbia. (the Vendor) WHEREAS:  A.
the Vendor operates a business of developing and building an improved axial vane-type rotary engine known as
the RadMax® rotary technology (the Technology) used in the design of lightweight and high efficiency engines, compressors and pumps;  B.
the Purchaser wishes to acquire and the Vendor wishes to sell, transfer, convey, assign, and deliver, on the
terms and conditions set forth in this Agreement, all of Vendors legal and beneficial rights, title and interests in and to and under all Assets (as defined below) (the Acquisition),including all past and
future income, royalties, damages and payments due (including, rights to damages and payments for past, present or future infringements or misappropriations) with respect thereto, in each case, of the Vendor in all countries relating to such Assets
(collectively, the PurchasedAssets),free and clear of all Encumbrances (as defined below); and  C.
the Vendor is listed on the TSX Venture Exchange (the Exchange) and the
Transaction (as defined below) may result in the de-listing of the Vendor from the Exchange. In
consideration of the undertakings of the parties, their mutual promises and covenants, and other valuable consideration as provided, the parties, intending to be legally bound, hereby agree as follows: 1.  INTERPRETATION  1.1
Definitions In this Agreement and in the schedules, the following terms and expressions will have the following meanings:  (a)
Agreement means this asset purchase agreement and all instruments amending it;
hereof, hereto and hereunder and similar expressions mean and refer to this Agreement and not to any particular Article, Section, or other subdivision; Article,Section or other subdivisions of this Agreement followed by a number means and refers to the specified Article, Section or other subdivision of this Agreement;  LOGO




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(b)
Acquisition has the meaning ascribed thereto in the Recitals;  (c)
Assets means all assets of the Vendor including, but not limited to, the Patents listed in
Schedule A hereto and all continuations, continuations-in-part, divisionals, patent cooperation treaty equivalents, and foreign counterparts of the Patents listed in
Schedule A hereto;  (d)
Assessment shall include a reassessment or additional assessment and the term
assessed shall be interpreted in the same manner;  (e)
Business Day means any day other than a Saturday, a Sunday or a statutory holiday in the
Province of British Columbia or any other day on which the principal chartered banks located in the City of Vancouver are not open for business during normal banking hours;  (f)
Closing means the completion of the Transaction pursuant to this Agreement at the Closing
Time;  (g)
Closing Date means the date this Agreement is entered into as shown on the first page of the
Agreement;  (h)
Closing Time means 10:00 am in the City of Vancouver on the Closing Date or such other time
on the Closing Date as the Parties may agree upon as the time at which the Closing shall take place;  (i)
Consent means a license, permit, approval, consent, certificate, registration or
authorization (including, without limitation, those made or issued by a Regulatory Authority, in respect of a Contract, or otherwise);  (j)
Consideration Shares has the meaning ascribed in Section 2.2;  (k)
Contract means any agreement, understanding, indenture, contract, lease, deed of trust,
license, option, instrument or other commitment, whether written of oral;  (l)
Technology means the axial vane-type rotary engine known as the RadMax® rotary technology;  (m)
Disclosure Documents has the meaning ascribed in Section 3.2 (10);  (n)
Encumbrances means mortgages, charges, pledges, security interests, liens, encumbrances,
actions, claims, demands and equities of any nature whatsoever or howsoever arising and any rights or privileges capable of becoming any of the foregoing;  (o)
Exchange has the meaning ascribed in the recitals hereto;  (p)
ITA means the Income Tax Act (Canada);  (q)
Law or Laws means all requirements imposed by statutes, regulations,
rules, ordinances, by-laws, decrees, codes, policies, judgments, orders, rulings, decisions, approvals, notices, permits, guidelines or directives of any Regulatory Authority;  2

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(r)
Licensed Patents means all Licensed Patents and Know How listed in Schedule B hereto
and all continuations, continuations-in-part, divisionals, patent cooperation treaty equivalents, and foreign counterparts of the Licensed Patents listed in Schedule B
hereto;  (s)
Loss and Losses mean any and all demands, claims, actions
or causes of action, assessments, losses, damages, liabilities, costs, and expenses, including without limitation, interest, penalties, fines and reasonable attorneys, accountants and other professional fees and expenses, but excluding damages for
lost profits or lost business opportunities and excluding any indirect, consequential or punitive damages suffered by the Purchaser or the Vendor;  (t)
Patents means any United States, Canadian or foreign patents and applications (including
provisional applications), patents issuing from such applications, certificates of invention or any other grants by any court, administrative agency or commission or other federal, state, provincial, county, local or foreign governmental authority,
instrumentality, agency commission or subdivision thereof, including the U.S. Patent and Trademark Office, Canadian Intellectual Property Office and the European Patent Office, for the protection of inventions, or foreign equivalents of any of the
foregoing;  (u)
Parties means the Vendor and the Purchaser and any other person that may become a party to
this Agreement, and Party means any one of them;  (v)
person includes any individual, corporation, partnership, firm, joint venture, syndicate,
association, trust, government, governmental agency and any other form of entity or organization;  (w)
PurchasedAssets has the meaning ascribed thereto in Recital B;  (x)
PurchasePrice has the meaning ascribed in Section 2.2;  (y)
Transaction means the Acquisition and the ancillary transactions contemplated by this
Agreement including the Change of Business of the Purchaser;  (z)
TransactionDisclosure Document means the document describing the Transaction,
required to be distributed to the Purchasers shareholders and filed with the Exchange pursuant to Exchange Policy 5.2, being either (i) an information circular on Exchange Form 3D1 if approval of the Purchasers shareholders is being
sought at a special meeting, or (ii) a filing statement on Exchange Form 3D2 if shareholder approval is sought by way of consent resolution;  (aa)
U.S. Securities Act means the United States Securities Act of 1933, as
amended;  (bb)
Regulatory Authority means any government, regulatory or administrative authority,
agency, commission, utility or board (federal, provincial, municipal or local, domestic or foreign) having jurisdiction in the relevant circumstances and any person acting under the authority of any of the foregoing and any judicial, administrative
or arbitral court, authority, tribunal or commission having jurisdiction in the relevant circumstances;  (cc)
Reporting Jurisdictions means British Columbia and Alberta;  3

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(dd)
Securities Laws means the securities laws, regulations, rules, rulings and orders and the
blanket rulings and policies and written interpretations of, and multilateral or national instruments adopted by, the securities regulators and the policies and rules of any applicable stock exchange or quotation or stock reporting system, including
the Exchange;  (ee)
SEDAR means System for Electronic Document Analysis and Retrieval, the mandatory electronic
document filing and retrieval system for Canadian public companies;  (ff)
Special Meeting means the meeting of the Purchasers shareholders to be called and held
to consider the Transaction, if required by the Exchange;  (gg)
Transaction means the purchase and sale of the Purchased Assets and all other transactions
contemplated by this Agreement; and  1.2.
Best Knowledge Any reference herein to the best knowledge of the Vendor will be deemed to mean the actual knowledge of the directors of the Vendor,
together with the knowledge which they would have had if they had conducted a diligent inquiry into the relevant subject matter.  1.3.
Currency Unless otherwise indicated, all references to dollar amounts in this Agreement are expressed in Canadian currency.  1.4.
Governing Law This Agreement shall be exclusively governed by and construed and interpreted in accordance with the laws of the Province of British Columbia and the federal
laws of the Canada applicable therein. The Parties hereby irrevocably attorn to the exclusive jurisdiction of the courts of Province of British Columbia with respect to any matter arising under or related to this Agreement.  1.5.
Interpretation Not Affected by Headings The division of this Agreement into articles and sections and the insertion of headings are for convenience of reference only and shall not affect the
construction or interpretation of this Agreement.  1.6.
Number and Gender In this Agreement, unless the context otherwise requires, any reference to gender shall include both genders and words importing the singular number shall
include the plural and vice-versa.  1.7.
Time of Essence Time is of the essence of this Agreement.  1.8.
Severability Each of the provisions contained in this Agreement is distinct and severable and a declaration of invalidity or unenforceability of any such provision or part
thereof by a court of competent jurisdiction shall not affect the validity or enforceability of any other provision hereof.  4

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1.9.
Calculation of Time Periods Where a time period is expressed to begin or end at, on or with a specified day, or to continue to or until a specified day, the time period includes that day.
Where a time period is expressed to begin after or to be from a specified day, the time period does not include that day. Where anything is to be done within a time period expressed after, from or before a specified day, the time period does not
include that day. If the last day of a time period is not a Business Day, the time period shall end on the next Business Day.  1.10.
Statutory Instruments Unless otherwise specifically provided in this Agreement, any reference in this Agreement to any Law shall be construed as a reference to such Law as amended
or re-enacted from time to time or as a reference to any successor thereto.  1.11.
Incorporation of Schedules The following are the schedules attached to and incorporated by reference into this Agreement: Schedule A
                    Assets 2.
 PURCHASE AND SALE  2.1.
Purchased Assets On the terms and subject to the fulfilment of the conditions of this Agreement, the Vendor agrees to sell, assign and transfer to the Purchaser, and the
Purchaser agrees to purchase from the Vendor at the Closing Time on the Closing Date, all of the Purchased Assets.  2.2.
Purchase Price The aggregate purchase price (the PurchasePrice) payable by the Purchaser to the Vendor for the Purchased Assets shall be the
allotment and issuance of 54,501,819 common shares in the capital of the Purchaser (collectively, the Consideration Shares).  2.3.
Payment of Purchase Price At the Closing Time, the Purchaser will issue 54,501,819 Consideration Shares to the Vendor.  2.4.
Transfer Taxes The Purchaser shall be liable for and shall pay all federal and provincial sales taxes and all other taxes, duties, fees or other like charges of any
jurisdiction properly payable in connection with the transfer of the Purchased Assets by the Vendor to the Purchaser.  2.5.
Securities Laws Compliance  (1)
The Parties hereto acknowledge that the issuance of the Consideration Shares by the Purchaser to the Vendor as
contemplated herein is being made pursuant to an exemption from the registration and prospectus requirements of applicable securities laws pursuant to the U.S. Securities Act.  5

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(2)
The Vendor confirms to and covenants with the Purchaser that:  (a)
it will comply with all requirements of applicable securities laws in connection with the issuance to it of the
Consideration Shares and the resale of any of the Consideration Shares;  (b)
the Consideration Shares have not been registered under the U.S. Securities Act of 1933 or the securities laws
of any State of the United States and that the Purchaser does not intend to register the Consideration Shares under the Securities Act of 1933, or the securities laws of any State of the United States and has no obligation to do so; and  (c)
the Vendor is not a U.S. Person and is acquiring the Consideration Shares for its own account and not with a
view to its distribution within the meaning of Section 2(11) the U.S. Securities Act. The Vendor is either an accredited investor as that term is defined in Rule 501 of Regulation D of the U.S. Securities Act, or is acquiring the
Consideration Shares pursuant to section 4(2) of the U.S. Securities Act in a private offering and has the ability to bear the economic risk in connection with the consummation of the transactions contemplated by this Agreement,
including a complete loss of future revenue related to the Consideration Shares.  (3)
Upon the issuance of the Consideration Shares to the Vendor and until such time as is no longer required under
applicable securities laws, the certificates representing the Consideration Shares will bear legends in substantially the following form: UNLESS PERMITTED UNDER SECURITIES LEGISLATION, THE HOLDER OF THIS SECURITY MUST NOT TRADE THIS SECURITY BEFORE [THE DATE THAT IS 4
MONTHS AND A DAY AFTER THE DISTRIBUTION DATE] THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN AND WILL NOT BE REGISTERED
UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE U.S. SECURITIES ACT). THE HOLDER HEREOF, BY ACQUIRING SUCH SECURITIES, AGREES FOR THE BENEFIT OF THE CORPORATION THAT SUCH SECURITIES MAY BE OFFERED, SOLD, PLEDGED OR
OTHERWISE TRANSFERRED ONLY (A) TO THE CORPORATION, (B) OUTSIDE THE UNITED STATES IN ACCORDANCE WITH RULE 904 OF REGULATIONS UNDER THE U.S. SECURITIES ACT IF APPLICABLE, (C) INSIDE THE UNITED STATES (1) PURSUANT TO THE EXEMPTION FROM THE
REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER, IF AVAILABLE, AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS, OR (2) IN A TRANSACTION THAT DOES NOT REQUIRE REGISTRATION UNDER THE U.S. SECURITIES
ACT OR ANY APPLICABLE STATE LAWS AND REGULATIONS GOVERNING THE OFFER AND SALE OF SECURITIES, AND THE HOLDER, PRIOR TO SUCH SALE PURSUANT TO (C)(1) OR (2), HAS FURNISHED TO THE CORPORATION AN OPINION OF COUNSEL OR OTHER EVIDENCE OF EXEMPTION IN FORM
AND SUBSTANCE REASONABLY SATISFACTORY TO THE CORPORATION. PROVIDED THAT IF THE CORPORATION IS A FOREIGN ISSUER AS THAT TERM IS DEFINED BY REGULATIONS OF THE U.S. SECURITIES ACT AT THE TIME OF SALE, A NEW CERTIFICATE BEARING NO
RESTRICTIVE LEGEND, DELIVERY OF WHICH WILL CONSTITUTE GOOD DELIVERY, MAY BE OBTAINED FROM THE TRANSFER AGENT, UPON DELIVERY OF THIS CERTIFICATE AND A DULY EXECUTED DECLARATION, IN FORM SATISFACTORY TO THE CORPORATION AND ITS TRANSFER
AGENT, TO THE EFFECT THAT THE SALE OF THE SECURITIES REPRESENTED HEREBY IS BEING MADE IN COMPLIANCE WITH RULE 904 OF REGULATIONS UNDER THE U.S. SECURITIES ACT. IN ADDITION, HEDGING TRANSACTIONS INVOLVING THE SECURITIES MAY NOT BE CONDUCTED UNLESS IN
COMPLIANCE WITH THE 1933 ACT.  6

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(4)
The Vendor acknowledges that the Exchange may impose an escrow or voluntary pooling requirement on the
Consideration Shares held by the Vendor and the Vendor agrees to escrow or pool any shares required by the Exchange. 3.  REPRESENTATIONS AND WARRANTIES  3.1.
Representations and Warranties of the Vendor The Vendor hereby makes the following representations and warranties to the Purchaser and acknowledges that the Purchaser is relying on such representations
and warranties in entering into this Agreement and completing the Transaction:  (1)
Incorporation and Existence of the Vendor.The Vendor is a corporation incorporated and existing under
the laws of the Province of British Columbia.  (2)
Corporate Power.The Vendor has the corporate power and authority to own or lease its property and to
carry on its business as now being conducted by it.  (3)
Options.Except for the Purchasers right in this Agreement and as disclosed in the
Purchasers public filings with the Securities and Exchange Commission, no person has any option, warrant, right, call, commitment, conversion right, right of exchange or other agreement or any right or privilege (whether by law, pre-emptive or contractual) capable of becoming an option, commitment, conversion right, right of exchange or other agreement for the purchase from the Vendor of any of the Purchased Assets.  (4)
Validity of Agreement.  (a)
The Vendor has all necessary corporate power to own the Purchased Assets and to enter into and perform its
obligations under this Agreement, and the Vendor has all necessary corporate power to enter into and perform its obligations under any other agreements or instruments to be delivered or given by it pursuant to this Agreement.  (b)
The Vendors execution and delivery of, and performance of its obligations under, this Agreement and the
consummation of the Transaction have been duly authorized by all necessary corporate action on the part of the Vendor.  (c)
This Agreement or any other agreements entered into pursuant to this Agreement to which the Vendor is a party
constitute legal, valid and binding obligations of the Vendor enforceable against it in accordance with their respective terms, except as enforcement may be limited by bankruptcy, insolvency and other laws affecting the rights of creditors generally
and except that equitable remedies may be granted only in the discretion of a court of competent jurisdiction.  7

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(5)
No Violation.The execution and delivery of this Agreement by the Vendor, the consummation of the
Transaction and the fulfilment by the Vendor of the terms, conditions and provisions hereof will not (with or without the giving of notice or lapse of time, or both):  (a)
contravene or violate or result in a material breach or a material default under or give rise to a right of
termination, amendment or cancellation or the acceleration of any obligations of the Vendor under:  (i)
any applicable law;  (ii)
any judgment, order, writ, injunction or decree of any Regulatory Authority having jurisdiction over the
Vendor;  (iii)
its Articles of Incorporation or any resolutions of the board of directors or shareholders of the Vendor;  (iv)
any Consent held by the Vendor or necessary to the ownership of the Purchased Assets; or  (v)
the provisions of any Contract to which the Vendor is a party or by which it is, or any of its properties or
assets are, bound; or  (b)
result in the creation or imposition of any Encumbrance on any of the Purchased Assets.  (6)
Regulatory and Contractual Consents.To the knowledge of the Vendor, there is no requirement to make any
filing with, give any notice to or obtain any Consent from any Regulatory Authority as a condition to the lawful consummation of the Transaction. There is no requirement under any Contract to which the Vendor is a party or by which the Vendor is
bound to make any filing with, give any notice to, or to obtain the Consent of, any party to such Contract relating to the Transaction.  (7)
No Material Adverse Change.Since the Annual Statement Date, no material adverse change has occurred in
any of the assets, business, financial condition, earnings, results of operations or prospects of the Business nor has any other event, condition, or state of facts occurred or arisen which might have a material adverse effect on the assets,
business, financial condition, earnings, results of operations or prospects of the Business.  (8)
Compliance with Laws.The Vendor has complied, in all material respects, with all Laws applicable to the
Purchased Assets.  (9)
Assets.Schedule A is a complete and accurate list of all Assets, pertaining to the Technology,
underlying the Purchased Assets;  (10)
Licensed Patents.Schedule B is a complete and accurate list of all Licensed Patents, pertaining to the
Technology.  (11)
Title to Assets and Licensed Patents.The Vendor has good and marketable title to the Assigned and
Licensed Patents. The Assets and Licensed Patents are free and clear of all Encumbrances and restrictions of transfer. There are no actions, suits, claims or proceedings threatened, pending or in progress on the part of any named inventor of the
Patents relating in any way to the Assets and Vendor has not received notice of (and Vendor is not aware of any facts or circumstances which could reasonably be expected to give rise to) any other actions, suits, investigations, claims or
proceedings threatened, pending or in progress relating in any way to the Patents.  8

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(12)
Full Disclosure.No representation or warranty by the Vendor in this Agreement and no statement
contained in any certificate or other document furnished or to be furnished to the Purchaser pursuant to this Agreement contains any untrue statement of a material fact, or omits to state a material fact necessary to make the statements contained
therein, in light of the circumstances in which they are made, not misleading.  (13)
Reporting Issuer.The Vendor is a reporting issuer in good standing in the Reporting Jurisdictions and
its common shares are posted and listed for trading on the Exchange. The Purchaser is not in material default under the Securities Laws of the Reporting Jurisdictions. No orders suspending the sale or ceasing the trading of any securities issued by
the Purchaser have been issued by any Regulatory Authority, and no proceedings for such purpose are pending or, to the knowledge of the Purchaser, threatened.  (14)
Consents.Other than the Exchange Approval and Shareholder Approval, there is no requirement for the
Vendor to make any filing with, give any notice to or obtain any Consent from any Regulatory Authority as a condition to the lawful consummation of the Transaction.  3.2.
Representations and Warranties of the Purchaser The Purchaser hereby makes the following representations and warranties to the Vendor and acknowledges that the Vendor is relying on such representations and
warranties in entering into this Agreement and completing the Transaction:  (1)
Incorporation and Existence.The Purchaser has been duly incorporated and organized and is a valid and
subsisting company under the laws of the State of Oregon, and is duly qualified to carry on business in the State of Oregon and in each other jurisdiction, if any, wherein the carrying out of the activities contemplated makes such qualifications
necessary.  (2)
Capitalization.As at the date of this Agreement, the Purchaser has 32,779,298 common shares and no
common share purchase warrants issued and outstanding exempt as disclosed in the Purchasers public filings with the Securities and Exchange Commission as of the date of this Agreement.  (3)
Reporting Issuer.The Purchaser is a reporting issuer in good standing in the United States and its
common shares are posted and quoted for trading on the OTCQB. The Purchaser is not in material default under the Securities Laws of the United States. No orders suspending the sale or ceasing the trading of any securities issued by the Purchaser
have been issued by any Regulatory Authority, and no proceedings for such purpose are pending or, to the knowledge of the Purchaser, threatened.  (4)
Validity of Agreement.  (a)
The Purchaser has all necessary corporate power to own the Purchased Assets. The Purchaser has all necessary
corporate power to enter into and perform its obligations under this Agreement and any other agreements or instruments to be delivered or given by it pursuant to this Agreement.  9

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(b)
The execution, delivery and performance by the Purchaser of this Agreement and the consummation of the
Transaction have been duly authorized by all necessary corporate action on the part of the Purchaser.  (c)
This Agreement or any other agreements entered into pursuant to this Agreement to which the Purchaser is a
party constitute legal, valid and binding obligations of the Purchaser, enforceable against the Purchaser in accordance with their respective terms, except as enforcement may be limited by bankruptcy, insolvency and other laws affecting the rights
of creditors generally and except that equitable remedies may be granted only in the discretion of a court of competent jurisdiction.  (5)
No Violation.The execution and delivery of this Agreement by the Purchaser, the consummation of the
Transaction and the fulfilment by the Purchaser of the terms, conditions and provisions hereof will not (with or without the giving of notice or lapse of time, or both):  (a)
contravene or violate or result in a breach or a default under or give rise to a right of termination,
amendment or cancellation or the acceleration of any obligations of the Purchaser, under:  (i)
any applicable Law;  (ii)
any judgment, order, writ, injunction or decree of any Regulatory Authority having jurisdiction over the
Purchaser;  (iii)
the Articles, Notice of Articles or any resolutions of the board of directors or shareholders of the Purchaser;  (iv)
any Consent held by the Purchaser; or  (v)
the provisions of any Contract to which the Purchaser is a party or by which it is, or any of its properties or
assets are, bound.  (6)
Brokers.Except for finders that may receive finders fees in connection with the Post-Closing
Financing in accordance with Exchange policies, the Purchaser has not engaged any broker or other agent in connection with the Transaction and, accordingly, there is no commission, fee or other remuneration payable to any broker or agent who
purports or may purport to have acted for the Purchaser.  (7)
Consideration Shares.The Consideration Shares to be issued hereunder will, upon issue and delivery, be
validly issued as fully-paid and non-assessable shares in the capital of the Purchaser, free of all restrictions on trading other than those required by applicable securities law or by the Exchange as set out
in Section 2.5 hereof.  (8)
Exchange Listing.The Purchaser shall use its commercially reasonable efforts to maintain the listing on
the Exchange of the common shares in the capital of the Purchaser for a period of at least 24 months after the Closing Date.  (9)
Public Disclosure.The Purchaser has filed all forms, reports, documents and information required to be
filed by it, whether pursuant to applicable securities laws or otherwise, with the Exchange (or one of its predecessors) or the applicable securities regulatory authorities (the Disclosure Documents). As of the time
the Disclosure Documents were filed with the applicable securities regulators and on EDGAR: (i) each of the Disclosure Documents complied in all material respects with the requirements of the applicable securities laws; and (ii) none of
the Disclosure Documents contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they
were made, not misleading.  10

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(10)
Financial Statements.The financial statements of the Purchaser contained in the Disclosure Documents:
(i) complied as to form in all material respects with the published rules and regulations under the applicable securities laws; (ii) were reported in accordance with United States generally accepted accounting principles or International
Financial Reporting Standards, as the case may be; and (iii) present fairly the consolidated financial position of the Purchaser and its subsidiaries, if any, as of the respective dates thereof and the consolidated results of operations of the
Purchaser for the periods covered thereby.  (11)
Material Change/Material Fact.There is no material fact or material change (as
those terms are defined in applicable securities legislation) in the affairs of the Corporation that has not been generally disclosed to the public.  3.3.
Survival of Covenants, Representations and Warranties of the Vendor To the extent that they have not been fully performed at or prior to the Closing Time, and unless otherwise provided, the covenants, representations and
warranties of the Vendor contained in this Agreement and any agreement, instrument, certificate or other document executed or delivered pursuant to this Agreement shall survive the Closing and shall continue for the benefit of the Purchaser for a
period of 2 years notwithstanding such Closing, nor any investigation made by or on behalf of the Purchaser or any knowledge of the Purchaser, except that the representations and warranties set out in Section 3.1(1) to and including 3.1(4) and
the corresponding representations and warranties set out in the certificates to be delivered pursuant to Section 6.1, shall survive the Closing and continue in full force and effect without limitation of time.  3.4.
Survival of Covenants, Representations and Warranties of the Purchaser To the extent that they have not been fully performed at or prior to the Closing Time, and unless otherwise provided, the covenants, representations and
warranties of the Purchaser contained in this Agreement and in any agreement, instrument, certificate or other document delivered pursuant to this Agreement shall survive the Closing and shall continue for the benefit of the Vendor for a period of 2
years notwithstanding such Closing, nor any investigation made by or on behalf of the Vendor or any knowledge of the Vendor, except that the representations and warranties set out in Sections 3.2(1) and 3.2(4), and the corresponding representations
and warranties set out in the certificates to be delivered pursuant to Section 6.2, shall survive the Closing and shall continue in full force and effect without limitation of time. 4.  COVENANTS  4.1.
Exchange Approval The Purchaser shall use its commercially reasonable efforts to obtain the Exchange Approval. If requested by the Purchaser, the Vendor shall assist the
Purchaser with obtaining such approval by providing additional information or documentation as may be required by the Exchange.  4.2.
Shareholder Approval and Transaction Document If required pursuant to the Exchange Approval, the Vendor shall convene and conduct a special meeting of the Vendors shareholders as soon as reasonably
practicable for the purpose of considering and approving the Transaction (the Special Meeting). Whether or not the Vendor is required to hold the Special Meeting, the Vendor shall prepare and complete, in consultation with the
Purchaser, the Transaction Document required by the Exchange, and the Vendor shall cause the Transaction Document to be filed and sent to shareholders of the Vendor in accordance with applicable Law in order to obtain the approval of the
Vendors shareholders at the Special Meeting or by way of consent resolution, as may be permitted by the Exchange. Each of the Vendor and the Purchaser will:  (a)
ensure that all information provided by it or on its behalf that is contained in the Transaction Document does
not contain any misrepresentation or any untrue statement of a material fact or omit to state a material fact required to be stated in the Transaction Document and necessary to make any statement that it contains not misleading in light of the
circumstances in which it is made; and  (b)
promptly notify the other party if, at any time before Closing, it becomes aware that the Transaction Document
contains a misrepresentation, an untrue statement of material fact, omits to state a material fact required to be stated in those documents that is necessary to make any statement it contains not misleading in light of the circumstances in which it
is made or that otherwise requires an amendment or a supplement to those documents.  11

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4.3.
Maintenance of Corporate Status Prior to Closing and for a period of a least 24 months after the Closing Date, the Purchaser shall use its commercially reasonable efforts to remain a
corporation validly subsisting under the laws of its jurisdiction of existence, licensed, registered or qualified as an extra-provincial or foreign corporation in all jurisdictions where the character of its properties owned or leased or the nature
of the activities conducted by it make such licensing, registration or qualification necessary and shall carry on its business in the ordinary course and in compliance in all material respects with all applicable laws, rules and regulations of each
such jurisdiction. 5.  CONDITIONS  5.1
Mutual Conditions Precedent The respective obligations of the parties hereto to consummate the transactions contemplated hereby are subject to the satisfaction, on or prior to the Closing
Time, of the following conditions any of which may be waived by the mutual consent of such parties without prejudice to their rights to rely on any other or others of such conditions:  (a)
the Exchange shall have conditionally accepted the Transaction and the Transaction shall have been approved by
the shareholders of the Purchaser in accordance with the requirements of the Exchange; and  (b)
the Consideration Shares to be issued upon the completion of the Transaction shall have been accepted for
listing by the Exchange, subject only to the Purchaser fulfilling the Exchanges listing requirements.  12

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5.2
Conditions to the Obligations of the Purchaser Notwithstanding anything herein contained, the obligation of the Purchaser to complete the transactions provided for herein will be subject to the fulfillment
of the following conditions at or prior to the Closing Time:  (a)
The representations and warranties of the Vendor contained in this Agreement shall be true and accurate on the
date hereof and at the Closing Time with the same force and effect as though such representations and warranties had been made as of the Closing Time (regardless of the date as of which the information in this Agreement or in any Schedule or other
document made pursuant hereto is given).  (b)
The Vendor shall have complied with all covenants and agreements herein agreed to be performed or caused to be
performed by them at or prior to the Closing Time.  (c)
The Vendor shall have delivered to the Purchaser a certificate in a form satisfactory to the Purchaser
confirming that the facts with respect to each of the representations and warranties of the Vendor are as set out herein and remain true at the Closing Time and that the Vendor has performed each of the covenants required to be performed by it
hereunder.  (d)
No order, decision or ruling of any court, tribunal or regulatory authority having jurisdiction will have been
made, and no action or proceeding will be pending or threatened which, in the opinion of counsel to the Purchaser, is likely to result in an order, decision or ruling:  (i)
to disallow, enjoin, prohibit or impose any limitations or conditions on the Transaction or the transactions
contemplated hereby; or  (ii)
to impose any limitations or conditions which may have an adverse effect on the Purchased Assets.  (e)
All consents, approvals authorizations of any governmental or regulator authority or person whose consent to
the Transaction is required to be obtained in order to carry out the transactions contemplated hereby in compliance with all laws and agreements binding upon the parties hereto will have been obtained. The conditions contained in this Section 5.2 are inserted for the exclusive benefit of the Purchaser and may be waived in whole or in part by the
Purchaser at any time. The Vendor acknowledges that the waiver by the Purchaser of any condition or any part of any condition will constitute a waiver only of such condition or such part of such condition, as the case may be, and will not constitute
a waiver of any covenant, agreement, representation or warranty made by the Vendor herein that corresponds or is related to such condition or such part of such condition, as the case may be. If any of the conditions contained in this
Section 5.2 are not fulfilled or complied with in all material respects as herein provided, the Purchaser may, at or prior to the Closing Time at its option, rescind this Agreement by notice in writing to the Vendor and in such event the
Purchaser will be released from all obligations hereunder and, unless the condition or conditions which have not been fulfilled are reasonably capable of being fulfilled or caused to be fulfilled by the Vendor, then the Vendor will also be released
from all obligations hereunder.  13

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5.3
Conditions to the Obligations of the Vendor Notwithstanding anything herein contained, the obligations of the Vendor to complete the transactions provided for herein will be subject to the fulfillment of
the following conditions at or prior to the Closing Time:  (a)
The representations and warranties of the Purchaser contained in this Agreement or in any documents delivered
in order to carry out the transactions contemplated hereby will be true and accurate on the date hereof and at the Closing Time with the same force and effect as though such representations and warranties had been made as of the Closing Time
(regardless of the date as of which the information in this Agreement or any such Schedule or other document made pursuant hereto is given).  (b)
The Purchaser shall have complied with all covenants and agreements herein agreed to be performed or caused to
be performed by it at or prior to the Closing Time.  (c)
The Purchaser shall have delivered to the Vendor a certificate confirming that the facts with respect to each
of the representations and warranties of the Purchaser are as set out herein at the Closing Time and that the Purchaser has performed each of the covenants required to be performed by it hereunder.  (d)
There shall have been no material adverse change in the business of the Purchaser.  (e)
No order, decision or ruling of any court, tribunal or regulatory authority having jurisdiction will have been
made, and no action or proceeding will be pending or threatened which, in the opinion of counsel to the Vendor, is likely to result in an order, decision or ruling:  (i)
to disallow, enjoin, prohibit or impose any limitations or conditions on the Transaction or the transactions
contemplated hereby; or  (ii)
to impose any limitations or conditions which may have an adverse effect on the business of the Purchaser.  (f)
All consents, approvals and authorizations of any governmental or regulatory authority or person whose consent
to the Transaction is required to be obtained in order to carry out the transactions contemplated hereby in compliance with all laws and agreements binding upon the parties hereto will have been obtained.  (g)
The Purchaser shall issue and deliver to the Vendor the Consideration Shares in compliance with all applicable
securities laws. The conditions contained in this Section 5.3 hereof are inserted for the exclusive benefit of the Vendor and may
be waived in whole or in part by the Vendor at any time. The Purchaser acknowledges that the waiver by the Vendor of any condition or any part of any condition will constitute a waiver only of such condition or such part of such condition, as the
case may be, and will not constitute a waiver of any covenant, agreement, representation or warranty made by the Vendor herein that corresponds or is related to such condition or such part of such condition, as the case may be. If any of the
conditions contained in this Section 5.3 hereof are not fulfilled or complied with as herein provided, the Vendor may, at or prior to the Closing Time at its option, rescind this Agreement by notice in writing to the Purchaser and in such event
the Vendor will be released from all obligations hereunder and, unless the condition or conditions which have not been fulfilled are reasonably capable of being fulfilled or caused to be fulfilled by the Purchaser, then the Purchaser will also be
released from all obligations hereunder.  14

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6.  CLOSING  6.1.
Vendor Deliveries At the Closing Time, the Vendor shall deliver to the Purchaser the following in form and substance satisfactory to the Purchaser:  (a)
the certificate of the Vendor contemplated in Section 5.2;  (b)
an opinion from the Vendors IP legal counsel addressed to the Purchaser in form and substance
satisfactory to the Purchaser, relating to the Purchased Assets;  (c)
certified copy of the resolution of the directors and the shareholders of the Vendor authorizing the execution
and delivery of this Agreement and the performance by the Vendor of the terms of the Agreement;  (d)
all documentation and other evidence reasonably requested by the Purchaser in order to establish the due
authorization and consummation of the Transaction, including the taking of all corporate proceedings by the boards of directors and shareholders of the Vendor required to effectively carry out the obligations of the Vendor pursuant to this
Agreement; and  (e)
a duly completed and executed patent assignment and any other documentation necessary or reasonably required to
transfer the Purchased Assets to the Purchaser with a good and marketable title, free and clear of all Encumbrances whatsoever.  6.2.
Purchaser Deliveries At the Closing Time, the Purchaser shall deliver to the Vendor the following in form and substance satisfactory to the Vendor:  (a)
the certificate of the Purchaser contemplated in Section 5.3;  (b)
certificates representing the Consideration Shares;  (c)
if necessary, a copy of a letter from the Exchange approving the Transaction;  (d)
a certified copy of the resolution of the directors of the Purchaser authorizing the execution and delivery of
this Agreement and the performance by the Purchaser of the terms of the Agreement including without limitation the allotment and issuance of the Consideration Shares; and  (e)
all documentation and other evidence reasonably requested by the Vendor in order to establish the due
authorization and consummation of the Transaction, including the taking of all corporate proceedings by the boards of directors and shareholders of the Purchaser required to effectively carry out the obligations of the Purchaser pursuant to this
Agreement.  15

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6.3.
Place of Closing The Closing shall take place at the Closing Time at the offices of the Purchaser or at such other place as the Purchaser and the Vendor may agree upon in
writing. 7.  INDEMNIFICATION  7.1.
Purchaser Indemnity The Purchaser will indemnify, defend, and hold harmless the Vendor from, against, for, and in respect of any and all Losses asserted against, relating to,
imposed upon, or incurred by the Vendor by reason of, resulting from, based upon or arising out of (i) any misrepresentation, misstatement or breach of warranty of the Purchaser contained in or made pursuant to this Agreement or any certificate
or other instrument delivered pursuant to this Agreement; or (ii) the breach or partial breach by the Purchaser of any covenant or agreement of the Purchaser made in or pursuant to this Agreement or any certificate or other instrument delivered
pursuant to this Agreement.  7.2.
Vendor Indemnity The Vendor will indemnify, defend, and hold harmless the Purchaser from, against, for, and in respect of any and all Losses asserted against, relating to,
imposed upon, or incurred by the Purchaser by reason of, resulting from, based upon or arising out of (i) any misrepresentation, misstatement or breach of warranty of Vendor contained in or made pursuant to this Agreement or any certificate or
other instrument delivered pursuant to this Agreement; or (ii) the breach or partial breach by the Vendor of any covenant or agreement of the Vendor made in or pursuant to this Agreement or any certificate or other instrument delivered pursuant to
this Agreement. 8.  ARBITRATION  8.1.
Reasonable Commercial Efforts to Settle Disputes If any controversy, dispute, claim, question or difference (a Dispute) arises with respect to this Agreement or its
performance, enforcement, breach, termination or validity, the Parties to the Dispute will use all commercially reasonable efforts to settle the Dispute. To this end, they will consult and negotiate with each other in good faith and understanding of
their mutual interests to reach a just and equitable solution satisfactory to all such Parties.  8.2.
Arbitration Except as is expressly provided in this Agreement, if the Parties do not reach a solution pursuant to Section 8.1 within a period of 15 Business Days
following the first notice of the Dispute by any Party to the other party(ies) to the Dispute, then upon written notice by any Party to the other party(ies) to the Dispute, the Dispute will be submitted to
non-binding arbitration in accordance with the provisions of the Commercial Arbitration Act(BritishColumbia), based upon the following:  (1)
the arbitration tribunal will consist of one arbitrator appointed by mutual agreement of such Parties, or in
the event of failure to agree within 10 Business Days following delivery of the written notice to arbitrate, any such Party may apply to a judge of the British Columbia Supreme Court to appoint an arbitrator. The arbitrator will be qualified by
education and training to pass upon the particular matter to be decided;  16

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(2)
the arbitrator will be instructed that time is of the essence in the arbitration proceeding and, in any event,
the arbitration award must be made within 30 days of the appointment of the arbitrator;  (3)
after written notice is given to refer any Dispute to arbitration, the Parties to the Dispute will meet within
15 Business Days of delivery of the notice to arbitrate and will negotiate in good faith to agree upon the rules and procedures for the arbitration, in an effort to expedite the process and otherwise ensure that the process is appropriate given the
nature of the Dispute and the values at risk, failing which, the rules and procedures for the arbitration will be finally determined by the arbitrator;  (4)
the arbitration will take place in Vancouver, British Columbia;  (5)
except as otherwise provided in this Agreement or otherwise decided by the arbitrator, the fees and other costs
associated with the arbitrator will be shared equally by the Parties to the Dispute and each Party to the Dispute will be responsible for its own costs;  (6)
the arbitration award will be given in writing, will provide reasons for the decision, and will be final and
binding on the Parties, not subject to any appeal, and will deal with the question of costs of arbitration and all related matters;  (7)
judgment upon any award may be entered in any court having jurisdiction or application may be made to the Court
for a judicial recognition of the award or an order of enforcement, as the case may be;  (8)
all Disputes referred to arbitration (including without limitation the scope of the agreement to arbitrate, any
statute of limitations, conflict of laws rules, tort claims and interest claims) will be governed by the substantive law of British Columbia and the federal laws of Canada applicable therein; and  (9)
the Parties to the Dispute agree that the arbitration will be kept confidential and that the existence of the
proceeding and any element of it (including any pleadings, briefs or other documents submitted or exchanged, any testimony or other oral submissions and any awards) will not be disclosed beyond the arbitrator, the Parties to the Dispute, their
counsel and any person necessary to the conduct of the proceeding, except as may lawfully be required in judicial proceedings relating to the arbitration or otherwise. 9.  GENERAL  9.1.
Confidentiality The Purchaser covenants and agrees that, except as otherwise authorized by the Vendor and until the Closing, neither the Purchaser nor its representatives,
agents or employees will disclose to third parties, directly or indirectly, any confidential information or confidential data relating to the Vendor or the Business discovered or received by the Purchaser or its representatives, agents or employees
as a result of the Vendor making available to the Purchaser and its representatives, agents or employees the information requested by them in connection with the Transaction.  17

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9.2.
Collection of Personal Information The Vendor acknowledges and consents to the fact that the Purchaser may be required to collect its personal information which may be disclosed by the Purchaser
to:  (a)
the Exchange or securities regulatory authorities;  (b)
the Purchasers registrar and transfer agent;  (c)
Canadian tax authorities; and  (d)
authorities pursuant to the Proceeds of Crime (Money Laundering) and Terrorist Financing Act(Canada). By executing this Agreement, the Vendor is deemed to be consenting to the foregoing collection, use and disclosure
of such personal information and to the retention of such personal information for as long as permitted or required by law or business practice. The Vendor hereby consents to the foregoing collection, use and disclosure of such personal information
for such purposes only. The Vendor also consents to the filing of copies or originals of any of the documents described herein as may be required to be filed with the Exchange or any securities regulatory authority in connection with the
transactions contemplated hereby. An officer of the Purchaser is available to answer questions about the collection of personal information by the Purchaser.  9.3.
Notices  (1)
Any notice or other communication required or permitted to be given hereunder shall be in writing and shall be
delivered in person, transmitted by facsimile or similar means of recorded electronic communication or sent by registered mail, charges prepaid, addressed as follows:  (a)
if to the Vendor: Reg Technologies Inc. Suite
500  666 Burrard Street Vancouver, British Columbia V6C 3P6 Attention: Paul Chute Email:
pwci@regtech.com  (b)
if to the Purchaser: REGI U. S. 7520 N Market St.
#10 Spokane, WA, 99217 Attention: Paul Chute Email:
pchute@radmaxtech.com Any such notice or other communication shall be deemed to have been given and received on the day on which it was delivered
or transmitted (or, if such day is not a Business Day, on the next following Business Day) or, if mailed, on the third Business Day following the date of mailing; provided, however, that if at the time of mailing or within three Business Days
thereafter there is or occurs a labour dispute or other event that might reasonably be expected to disrupt the delivery of documents by mail, any notice or other communication hereunder shall be delivered or transmitted by means of recorded
electronic communication as described.  18

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(2)
Any Party may at any time change its address for service from time to time by giving notice to the other
Parties in accordance with this Section 9.3.  9.4.
Public Announcements and Disclosure The Parties shall consult with each other before issuing any press release or making any other public announcement with respect to this Agreement or the
Transaction and, except as required by any applicable Law or stock exchange having jurisdiction, no Party shall issue any such press release or make any such public announcement without the prior written consent of the others, which consent shall
not be unreasonably withheld or delayed. Prior to any such press release or public announcement, none of the Parties shall disclose this Agreement or any aspect of the Transaction except to its board of directors, its senior management, its legal,
accounting, financial or other professional advisors, any financial institution contacted by it with respect to any financing required in connection with the Transaction and counsel to such institution, or as may be required by any applicable Law or
stock exchange having jurisdiction.  9.5.
Assignment The rights of the Purchaser hereunder are not assignable without the written consent of the Vendor. The rights of the Vendor hereunder are not assignable
without the written consent of the Purchaser.  9.6.
Commercially Reasonable Efforts The Parties acknowledge and agree that, for all purposes of this Agreement, an obligation on the part of any Party to use its commercially reasonable
efforts to obtain any waiver, Consent or other document shall not require such Party to make any payment to any person for the purpose of procuring the same, other than payments for amounts due and payable to such person, payments for
incidental expenses incurred by such person and payments required by any applicable law or regulation.  9.7.
Expenses Unless otherwise provided, each of the Vendor and the Purchaser shall be responsible for the expenses (including fees and expenses of legal advisers,
accountants and other professional advisers) incurred by them, respectively, in connection with the negotiation and settlement of this Agreement and the completion of the Transaction. In the event of termination of this Agreement, the obligation of
each Party to pay its own expenses will be subject to any rights of such Party arising from a breach of this Agreement by another Party.  9.8.
Further Assurances Each of the Parties shall promptly do, make, execute, deliver, or cause to be done, made, executed or delivered, all such further acts, documents and things as
the other Parties may reasonably require from time to time after Closing at the expense of the requesting Party for the purpose of giving effect to this Agreement and shall use reasonable efforts and take all such steps as may be reasonably within
its power to implement to their full extent the provisions of this Agreement.  9.9.
Entire Agreement This Agreement, including all Schedules, constitutes the entire agreement between the Parties with respect to the subject matter and supersedes all prior
agreements, understandings, negotiations and discussions, whether written or oral including without limitation, the Letter of Intent. There are no conditions, covenants, agreements, representations, warranties or other provisions, express or
implied, collateral, statutory or otherwise, relating to the subject matter except provided in this Agreement. No reliance is placed by any Party on any warranty, representation, opinion, advice or assertion of fact made by any Party or its
directors, officers, employees or agents, to any other Party or its directors, officers, employees or agents, except to the extent that it has been reduced to writing and included in this Agreement.  19

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9.10.
Waiver, Amendment Except as expressly provided in this Agreement, no amendment or waiver of this Agreement shall be binding unless executed in writing by the Party to be bound.
No waiver of any provision of this Agreement shall constitute a waiver of any other provision, nor shall any waiver of any provision of this Agreement constitute a continuing waiver unless otherwise expressly provided.  9.11.
Rights Cumulative The rights and remedies of the Parties are cumulative and not alternative.  9.12.
Counterparts This Agreement may be executed in any number of counterparts, and/or by facsimile or e-mail transmission of Adobe
Acrobat files, each of which shall constitute an original and all of which, taken together, shall constitute one and the same instrument. Any Party executing this Agreement by fax or Adobe Acrobat file shall, immediately following a request by any
other Party, provide an originally executed counterpart of this Agreement provided, however, that any failure to so provide shall not constitute a breach of this Agreement. IN WITNESS WHEREOF this Agreement has been executed by the Parties.  REGI U.S.Per:

/s/Paul Chute, PresidentPaul Chute, PresidentREG TECHNOLOGIES INC.Per:

/s/Paul Chute, PresidentPaul Chute, President  20

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SCHEDULE A THE ASSETS  [    ]
Canadian Patent No. 2,496,157 for VANE-TYPE ROTARY APPARATUS WITH SPLIT VANES  [    ]
Canadian Patent No. 2,672,332 for A ROTARY DEVICE  [    ]
2,744,700 common shares of REGI U.S., Inc.  [    ]
1,530,000 common shares of Rand Energy Group Inc.; Rand Energy Group Inc. owns 588,567 common shares of REGI
U.S., Inc.  [    ]
3,287,737 common shares of Minewest Silver & Gold, Inc.  LOGO