Description of Capital Stock

EXHIBIT 4.4

DESCRIPTION OF CAPITAL STOCK

Our authorized capital stock consists of 500,000,000 shares of common stock, $0.001 par value per share, and 1,000,000 shares of blank check preferred stock, $0.001 par value per share. As of March 25, 2021, there are 6,579,771 shares of common stock and 0 shares of preferred stock outstanding.

This description is intended as a summary, and is qualified in its entirety by reference to our amended and restated articles of incorporation and amended and restated by-laws, which are filed, or incorporated by reference, as exhibits to our filings with the Securities and Exchange Commission.

Common Stock

Holders of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders, and do not have cumulative voting rights. Subject to preferences that may be applicable to any outstanding shares of preferred stock, holders of common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by our Board of Directors out of funds legally available for dividend payments. All outstanding, shares of common stock are fully paid and nonassessable. The holders of common stock have no preferences or rights of cumulative voting, conversion, or pre-emptive or other subscription rights. There are no redemption or sinking fund provisions applicable to the common stock. In the event of any liquidation, dissolution or winding-up of our affairs, holders of common stock will be entitled to share ratably in any of our assets remaining after payment or provision for payment of all of our debts and obligations and after liquidation payments to holders of outstanding shares of preferred stock, if any.

Warrants

Overview. The following summary of certain terms and provisions of our tradeable warrants (the “Warrants”) is not complete and is subject to, and qualified in its entirety by, the provisions of the warrant agent agreement between us the Warrant Agent, and the form of Warrant, both of which are filed as exhibits to our filings with the Securities and Exchange Commission. Prospective investors should carefully review the terms and provisions set forth in the warrant agent agreement, including the annexes thereto, and form of Warrant.

The Warrants entitle the registered holder to purchase one share of our common stock at a price equal to $7.00 per share, subject to adjustment as discussed below, immediately following the issuance of such warrant and terminating at 5:00 p.m., New York City time, on February 19, 2026. The Warrants trade on the Nasdaq Capital Market under the symbol “AMPGW.”

The exercise price and number of shares of common stock issuable upon exercise of the Warrants may be adjusted in certain circumstances, including in the event of a stock dividend or recapitalization, reorganization, merger or consolidation. However, the warrants will not be adjusted for issuances of common stock at prices below its exercise price.

Exercisability. The Warrants are exercisable at any time after their original issuance and at any time up to the date that is five (5) years after their original issuance. The warrants may be exercised upon surrender of the warrant certificate on or prior to the expiration date at the offices of the Warrant Agent, with the exercise form on the reverse side of the warrant certificate completed and executed as indicated, accompanied by full payment of the exercise price, by certified or official bank check payable to us, for the number of Warrants being exercised. Under the terms of the Warrant Agreement, we must use our best efforts to maintain the effectiveness of the registration statement and current prospectus relating to common stock issuable upon exercise of the Warrants until the expiration of the Warrants. If we fail to maintain the effectiveness of the registration statement and current prospectus relating to the common stock issuable upon exercise of the Warrants, the holders of the Warrants shall have the right to exercise the Warrants solely via a cashless exercise feature provided for in the Warrants, until such time as there is an effective registration statement and current prospectus.

Exercise Limitation. A holder may not exercise any portion of a Warrant to the extent that the holder, together with its affiliates and any other person or entity acting as a group, would own more than 4.99% of the outstanding common stock after exercise, as such percentage ownership is determined in accordance with the terms of the Warrant, except that upon prior notice from the holder to us, the holder may waive such limitation up to a percentage not in excess of 9.99%.

Exercise Price. The exercise price per whole share of common stock purchasable upon exercise of the Warrants is $7.00 per share. The exercise price is subject to appropriate adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting our common stock and also upon any distributions of assets, including cash, stock or other property to our stockholders.

Fractional Shares. No fractional shares of common stock will be issued upon exercise of the Warrants. If, upon exercise of the Warrant, a holder would be entitled to receive a fractional interest in a share, we will, upon exercise, pay a cash adjustment in respect of such fraction in an amount equal to such fraction multiplied by the exercise price. If multiple Warrants are exercised by the holder at the same time, we shall pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the exercise price.

Transferability. Subject to applicable laws, the Warrants may be offered for sale, sold, transferred or assigned without our consent.

Exchange Listing. The Warrants have been approved for listing on the Nasdaq Capital Market under the symbol “AMPGW” and commenced trading on Nasdaq on February 17, 2021.

Warrant Agent; Global Certificate. The Warrants will be issued in registered form under a warrant agent agreement between the Warrant Agent and us. The warrants shall initially be represented only by one or more global warrants deposited with the Warrant Agent, as custodian on behalf of The Depository Trust Company (DTC) and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed by DTC.

Fundamental Transactions. In the event of a fundamental transaction, as described in the Warrants and generally including any reorganization, recapitalization or reclassification of our common stock, the sale, transfer or other disposition of all or substantially all of our properties or assets, our consolidation or merger with or into another person, the acquisition of more than 50% of our outstanding common stock, or any person or group becoming the beneficial owner of 50% of the voting power represented by our outstanding common stock, the holders of the Warrants will be entitled to receive the kind and amount of securities, cash or other property that the holders would have received had they exercised the warrants immediately prior to such fundamental transaction.

Rights as a Stockholder. The Warrant holders do not have the rights or privileges of holders of common stock or any voting rights until they exercise their Warrants and receive shares of common stock. After the issuance of shares of common stock upon exercise of the Warrants, each holder will be entitled to one vote for each share held of record on all matters to be voted on by stockholders.

Governing Law. The Warrants and the warrant agent agreement are governed by New York law.

Preferred Stock

On July 10, 2013, the Board of Directors of the Company approved a certificate of amendment to the articles of incorporation and changed the authorized capital stock of the Company to include and authorize 500,000 shares of Preferred Stock, par value $0.001 per share. The current amended and restated certificate authorizes the Company to issue 1,000,000 shares of Preferred Stock.

In July 2013, the Board of Directors of the Company designated 140,000 shares Series A Convertible Preferred Stock. In January 2015, the Board of Directors of the Company increased the number of Series A Convertible Preferred Stock designated from 140,000 to 401,000. On October 7, 2020, our Board of Directors and our stockholders approved a resolution to amend and restate the certificate of designation of preferences, rights and limitations of Series A Convertible Preferred Stock to restate that there are 401,000 shares of the Company’s blank check Preferred Stock designated as Series A Convertible Preferred Stock. The amended and restated certificate clarifies that the Series A Convertible Preferred Stock convert at a rate of five shares of the Company’s common stock for every share of Series A Convertible Preferred Stock, and also restates that the Series A Convertible Preferred Stock shall be entitled to vote on all matters submitted to shareholders of the Company for each share of Series A Convertible Preferred Stock owned on the record date for the determination of shareholders entitled to vote on such matter or, if no such record date is established, on the date such vote is taken or any written consent of shareholders is solicited. The number of votes entitled to be cast by the holders of the Series A Convertible Preferred Stock equals that number of votes that, together with votes otherwise entitled to be cast by the holders of the Series A Convertible Preferred Stock at a meeting, whether by virtue of stock ownership, proxies, voting trust agreements or otherwise, entitle the holders to exercise 51% of all votes entitled to be cast to approve any action which Nevada law provides may or must be approved by vote or consent of the holders of common stock entitled to vote. There are currently 0 shares of Series A Convertible Preferred Stock outstanding.

On October 7, 2020, the Board of Directors of the Company approved a resolution to withdraw the Series B Preferred Stock designation by filing a certificate of withdrawal. Our Board of Directors took this action to remove the Series B Preferred Stock designation from any of its blank check Preferred Stock. At the time of withdrawal, there were no holders of the Series B Preferred Stock and the Company had no plans to issue Series B Preferred Stock.

Our Board of Directors has the authority, without further stockholder authorization, to issue from time to time shares of preferred stock in one or more series and to fix the terms, limitations, relative rights and preferences and variations of each series. Although we have no present plans to issue additional shares of preferred stock, the issuance of shares of preferred stock, or the issuance of rights to purchase such shares, could decrease the amount of earnings and assets available for distribution to the holders of common stock, could adversely affect the rights and powers, including voting rights, of the common stock, and could have the effect of delaying, deterring or preventing a change of control of us or an unsolicited acquisition proposal.

Nevada Anti-Takeover Statutes

The following provisions of the Nevada Revised Statutes (“NRS”) could, if applicable, have the effect of discouraging takeovers of our company.

Transactions with Interested Stockholders. The NRS prohibits a publicly-traded Nevada company from engaging in any business combination with an interested stockholder for a period of three years following the date that the stockholder became an interested stockholder unless, prior to that date, the Board of Directors of the corporation approved either the business combination itself or the transaction that resulted in the stockholder becoming an interested stockholder.

An “interested stockholder” is defined as any entity or person beneficially owning, directly or indirectly, 10% or more of the outstanding voting stock of the corporation and any entity or person affiliated with, controlling, or controlled by any of these entities or persons. The definition of “business combination” is sufficiently broad to cover virtually any type of transaction that would allow a potential acquirer to use the corporation’s assets to finance the acquisition or otherwise benefit its own interests rather than the interests of the corporation and its stockholders.

In addition, business combinations that are not approved and therefore take place after the three year waiting period may also be prohibited unless approved by the board of directors and stockholders or the price to be paid by the interested stockholder is equal to the highest of (i) the highest price per share paid by the interested stockholder within the 3 years immediately preceding the date of the announcement of the business combination or in the transaction in which he or she became an interested stockholder, whichever is higher; (ii) the market value per common share on the date of announcement of the business combination or the date the interested stockholder acquired the shares, whichever is higher; or (iii) if higher for the holders of preferred stock, the highest liquidation value of the preferred stock.

Acquisition of a Controlling Interest. The NRS contains provisions governing the acquisition of a “controlling interest” and provides generally that any person that acquires 20% or more of the outstanding voting shares of an “issuing corporation,” defined as Nevada corporation that has 200 or more stockholders at least 100 of whom are Nevada residents (as set forth in the corporation’s stock ledger); and does business in Nevada directly or through an affiliated corporation, may be denied voting rights with respect to the acquired shares, unless a majority of the disinterested stockholder of the corporation elects to restore such voting rights in whole or in part.

The statute focuses on the acquisition of a “controlling interest” defined as the ownership of outstanding shares sufficient, but for the control share law, to enable the acquiring person, directly or indirectly and individually or in association with others, to exercise (i) one-fifth or more, but less than one-third; (ii) one-third or more, but less than a majority; or (iii) a majority or more of the voting power of the corporation in the election of directors.

The question of whether or not to confer voting rights may only be considered once by the stockholders and once a decision is made, it cannot be revisited. In addition, unless a corporation’s articles of incorporation or bylaws provide otherwise (i) acquired voting securities are redeemable in whole or in part by the issuing corporation at the average price paid for the securities within 30 days if the acquiring person has not given a timely information statement to the issuing corporation or if the stockholders vote not to grant voting rights to the acquiring person’s securities; and (ii) if voting rights are granted to the acquiring person, then any stockholder who voted against the grant of voting rights may demand purchase from the issuing corporation, at fair value, of all or any portion of their securities.

The provisions of this section do not apply to acquisitions made pursuant to the laws of descent and distribution, the enforcement of a judgment, or the satisfaction of a security interest, or acquisitions made in connection with certain mergers or reorganizations.