NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS to be held on

NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS

to be held on February 28, 2023

INFORMATION CIRCULAR

Dated: January 16, 2023

NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS

to be held on February 28, 2023

NOTICE IS HEREBY GIVEN that an annual general and special meeting (the Meeting ) of shareholders of Organigram

Holdings Inc. (the Company ) will be held virtually via live audio webcast at https://virtual-meetings.tsxtrust.com/1437 on Tuesday, February 28, 2023 at 10:00 a.m. (Toronto time) for the following purposes:

An accompanying information circular contains specific details of the matters to be considered at the Meeting (the

Circular ). No other matters are contemplated, however any permitted amendment to or variation of any matter identified in this notice may properly be considered at the Meeting. The Meeting may also consider the transaction of such

other business as may properly come before the Meeting or any adjournment thereof.

Important Notice Regarding Virtual Meeting

The board of directors of the Company considers the appropriate format for our annual meeting of shareholders on an annual basis. Similar to

last year, we have again taken into account the ongoing impact of COVID-19, as well as the high number of flu cases that are circulating communities, each of which has heightened public health and travel

concerns for in-person annual meetings. Accordingly, we are pleased to continue to embrace the latest technology to provide expanded access, improved communication and cost savings for our shareholders and the

Company by conducting this year s Meeting in a virtual-only format. A virtual-only meeting format will enfranchise and give all shareholders an equal opportunity to participate at the Meeting regardless of their geographic location or their

particular circumstance.

Shareholders who attend the Meeting will do so by accessing a live webcast of the Meeting via the internet.

Shareholders will be able to access the Meeting using an internet connected device such as a laptop, computer, tablet or mobile phone, and the meeting platform will be supported across browsers and devices that are running the most updated version

of the applicable software plugins. Only registered shareholders

and duly appointed proxyholders (including non-registered (beneficial) shareholders who have appointed themselves as proxyholder) will be entitled to

attend, participate and vote at the Meeting, all in real time by visiting https://virtual-meetings.tsxtrust.com/1437, using the password ogi2023 (case sensitive), however such non-registered

shareholders may still attend the Meeting as guests through the live audio webcast at https://virtual-meetings.tsxtrust.com/1437.

In connection with the Meeting this year,

in compliance with applicable securities laws and an order of the Director under the Canada Business Corporations Act, the Company has elected to use the

notice-and-access delivery model, which allows the Company to furnish the Circular, the accompanying proxy-related materials, the audited consolidated financial

statements for the fiscal year ended August 31, 2022 and the report of the auditor thereon (the Financial Statements ) and associated management s discussion and analysis (collectively, the Meeting

Materials ) to shareholders via the Internet. Under notice-and-access, shareholders will continue to receive a proxy or voting instruction form enabling them to

vote at the Meeting; however, instead of a paper copy of the Meeting Materials, shareholders will receive a notice with information on how to access the Meeting Materials electronically. Shareholders are reminded to review the Circular prior to

voting. Shareholders with questions about notice-and-access can call TSX Trust Company toll free at

1-866-600-5869. The Meeting Materials can be viewed online at https://docs.tsxtrust.com/2345 or under the Company s profile

on SEDAR at www.sedar.com and on EDGAR at www.sec.gov.

The audited consolidated financial statements for the fiscal year ended

August 31, 2022 and the report of the auditor thereon will be made available at the Meeting and are available on SEDAR at www.sedar.com and on EDGAR at www.sec.gov.

How to Obtain paper Copies of the Meeting Materials

All shareholders may request that a paper copy of the Meeting Materials be sent to them at no cost. Prior to the meeting, requests may be made

by contacting TSX Trust Company toll free at 1-866-600-5869. Requests may be made up to one year from the date the Meeting

Materials were filed on SEDAR and on EDGAR at www.sec.gov. To obtain paper copies of the Meeting Materials after the meeting, please contact TSX Trust by calling 1-866-600-5869. A paper copy of the Meeting Materials will be mailed to you within three business days of receiving your request, if the request is made at any time prior to the meeting. We estimate

that your request for Meeting Materials will need to be received on or before February 17, 2023 in order to receive your paper copies in advance of the deadline for submission of forms of proxy and/or voting instruction forms in respect of the

Meeting. Notice-and-access is environmentally friendly and a cost-effective way to distribute our Meeting Materials because it reduces printing, paper and postage and

Registered shareholders may attend the Meeting online or may be represented by proxy. If you are a registered shareholder

and are unable to attend the Meeting online, please complete, date and sign the enclosed form of proxy and deliver it in accordance with the instructions set out in the form of proxy and in the Circular. To be valid, such proxies must be

deposited with the Company s transfer agent, TSX Trust Company, located at 100 Adelaide Street West, Suite 301, Toronto, Ontario M5H 4H1 by 10:00 a.m. (Toronto time) on February 24, 2023 (or

at least 48 hours, excluding Saturdays, Sundays and statutory holidays, prior to any reconvened meeting in the event of an adjournment of the Meeting).

Non-registered beneficial shareholders, whose shares are registered in the name of a broker,

securities dealer, bank, trust company or similar entity (an Intermediary ) should carefully follow the voting instructions provided by their Intermediary. All non-registered shareholders must follow

the instructions set out in the voting instruction form and in the Circular to ensure that such

shareholders common shares will be voted at the Meeting. If you hold your common shares in a brokerage account, you are not a registered shareholder.

Holders of common shares registered on the books of the Company at the close of business on January 19, 2023 are entitled to notice of,

and to vote at, the Meeting.

DATED at Toronto, Ontario this 16th day of

By Order of the Board of Directors

(signed) Beena Goldenberg

Chief Executive Officer

INFORMATION CIRCULAR

This information circular (the Circular ) is furnished in connection with the solicitation of proxies by the management of

Organigram Holdings Inc. for use at the annual and special meeting (the Meeting ) of its shareholders to be held virtually via live audio webcast at https://virtual-meetings.tsxtrust.com/1437 on Tuesday, February 28, 2023 at

10:00 a.m. (Toronto time) or at any adjournment(s) or postponement(s) thereof. The Meeting has been called for the purposes set forth in the notice of annual and special meeting of shareholders (the Notice of Meeting ) that

accompanies this Circular. Unless otherwise stated, all information in this Circular is current as of January 16, 2023.

last year, we have again taken into account the ongoing impact of COVID-19, as well as the high number of flu cases that are circulating communities, each of which has heightened public health and travel

concerns for in-person annual meetings. Accordingly, we are pleased to continue to embrace the latest technology to provide expanded access, improved communication and cost savings for our shareholders and the

Company by conducting this year s Meeting in a virtual-only format, which will be conducted via live audio webcast over the internet. Shareholders will have an opportunity to participate at the Meeting online regardless of their geographic

location. A summary of the information that shareholders will need to attend the Meeting online is provided under Notice-and-Access, Voting and Asking

Questions at the Meeting, Appointment and Revocation of Proxies Registered Shareholders and Appointment and Revocation of Proxies Non-Registered Shareholders .

In this Circular, references to the Company , we and our refer to Organigram Holdings

Inc. Common Shares means common shares without par value in the capital of the Company. Beneficial Shareholders means shareholders who do not hold Common Shares in their own name and

Intermediaries refers to brokers, investment firms, clearing houses and similar entities that own securities on behalf of Beneficial Shareholders.

The record date for the Meeting is January 19, 2023 (the Record Date ). The Company s

transfer agent has prepared a list, as of the close of business on the Record Date, of the registered holders of the Company s Common Shares. A holder of the Company s Common Shares whose name appears on such list is entitled to vote the

Common Shares on such list at the Meeting. Each Common Share entitles the holder to one vote on each item of business identified in the Notice of Meeting. As of the date of this Circular, there were 313,856,912 Common Shares issued and outstanding,

each carrying the right to one vote. Other than the contractual right to appoint two nominees currently held by BT DE Investments Inc. ( BAT ) as described herein, no group of shareholders has the right to elect a specified number

of directors, nor are there cumulative or similar voting rights attached to the Common Shares. BAT s board representation rights pursuant to an investor rights agreement with the Company entitle BAT to appoint (i) 20% of the Company s

board of directors (the Board ) for so long as it holds at least 15% of the issued and outstanding common shares of the Company from time to time; and (ii) 10% of the Board so long as BAT holds at least 10% of the issued and

outstanding common shares of the Company from time to time.

Solicitation of Proxies

The solicitation of proxies is being made by or on behalf of management. It is expected that the solicitation of proxies will be

primarily by mail, but proxies may also be solicited personally, by telephone or other form of correspondence. The Company may cause a soliciting dealer group to be formed for the purposes of soliciting proxies for the Meeting, for which the Company

would pay customary fees. The cost of solicitation of proxies will be borne by the Company.

In connection with the Meeting this year, in compliance with applicable securities laws and an order of the Director under the Canada

Business Corporations Act (the CBCA ), the Company has elected to use the notice-and-access delivery model, which allows the Company to

furnish the Circular, the accompanying proxy-related materials, the Financial Statements and associated management s discussion and analysis (collectively, the Meeting Materials ) to shareholders via the Internet. Under notice-and-access, shareholders will continue to receive a proxy or voting instruction form enabling them to vote at the Meeting; however, instead of a paper copy of the

Meeting Materials, shareholders will receive a notice with information on how to access the Meeting Materials electronically. Shareholders are reminded to review the Circular prior to voting. Shareholders with questions about notice-and-access can call TSX Trust Company toll free at

1-866-600-5869. The Meeting Materials can be viewed online at https://docs.tsxtrust.com/2345 or under the Company s profile

on SEDAR at www.sedar.com and on EDGAR at www.sec.gov.

Shareholders will receive paper copies of a notice package (the Notice

Package ) via prepaid mail containing a notice with the information prescribed by applicable securities laws and a form of proxy (if a registered shareholder) or a voting instruction form (if a

non-registered (beneficial) shareholder). The Company will not use procedures known as stratification in relation to the use of

notice-and-access. Stratification occurs when an issuer using notice-and-access sends a

paper copy of the Circular to some security holders with a Notice Package. Shareholders will only receive requirement notification documentation under the

notice-and-access model, which will not include a printed copy of this Circular.

Shareholders who wish to receive paper copies of the Meeting Materials may request that a paper copy of the Meeting Materials be sent to them

at no cost. Prior to the meeting, requests may be made by contacting TSX Trust Company toll free at 1-866-600-5869. We estimate

that your request for Meeting Materials will need to be received on or before February 17, 2023 in order to receive your paper copies in advance of the deadline for submission of forms of proxy and/or voting instruction forms in respect of the

Meeting. Shareholders who request paper copies of the Meeting Materials will have those Meeting Materials mailed to them within three business days of receipt of their request. Following the Meeting, requests for paper copies may be made up to one

year from the date the Meeting Materials were filed on SEDAR and on EDGAR at www.sec.gov. To obtain paper copies of the Meeting Materials after the meeting, please contact TSX Trust by calling 1-866-600-5869.

Voting and Asking Questions

Once again, this year we are holding the Meeting as a completely virtual meeting, which will be conducted via live

audio webcast, where all shareholders regardless of geographic location will have an opportunity to participate in the Meeting. Whether or not they are able to attend the virtual meeting, registered shareholders and