Document:

Viscorp, Inc. Exhibit 4.2 1/18/2008

EXHIBIT “A”

NEITHER THE OFFER NOR SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAS BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, (THE “ACT”).  THE SECURITIES MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE ACT, OR AN OPINION OF COUNSEL, IN FORM, SUBSTANCE AND SCOPE CUSTOMARY FOR OPINIONS OF COUNSEL IN COMPARABLE TRANSACTIONS, THAT REGISTRATION IS NOT REQUIRED UNDER THE ACT OR UNLESS SOLD PURSUANT TO RULE 144 OR REGULATION S UNDER THE ACT.

VISCORP, INC.

10% CONVERTIBLE EXCHANGEABLE NOTE

DUE: JUNE 30, 2009

No. __

             ______, 2007

$__________

New York, New York

FOR VALUE RECEIVED, the undersigned, VISCORP, INC. (herein called the “Company”), a corporation organized and existing under the laws of the State of Delaware, promises to pay to the order of _____________________________________, or his or its registered assigns (the “Holder”), the principal sum of __________________ ___________________________________________Dollars (US$_________) on June 30, 2009 (the “Maturity Date”), 

together with interest (computed on the basis of a 360-day year) on the outstanding principal amount at the rate of ten percent (10.00%) per annum from the date hereof, payable quarterly, on the last day of each March, June, September and December, commencing March 31, 2008, until the principal hereof shall have become due and payable, provided, however, that, at the option of the Company, the interest on this Note may be paid either in cash or in shares of the common stock of the Company, $0.001 par value per share (the “Common Stock”). 

1.

Securities Purchase Agreement.

This Note has been issued pursuant to the terms and conditions set forth in the Securities Purchase Agreement dated as of January 16, 2008 by and among the Company, certain Subsidiaries and Affiliates of the Company, Time Poly Management Limited, Cmark Holdings Co., Ltd., Happyvale Limited, Fartop Management Limited and the respective Investors named therein (as from time to time amended, the “Securities Purchase Agreement”).  All of the terms and conditions of such Securities Purchase Agreement are incorporated herein by this reference, and all capitalized terms not separately defined in this Note, shall have the same meanings as defined in the Securities Purchase Agreement.

2.

Conversion Into Series A Preferred Stock.

Notwithstanding anything to the contrary, express or implied, contained in this Note or the Securities Purchase Agreement, upon consummation of the Preferred Stock Issuance and the delivery by 

the Company to the Holder of one or more stock certificates evidencing that number of shares of Series A Preferred Stock of the Company as shall be equal to the result of dividing (i) the principal amount of this Note plus all accrued interest hereon, by (ii) one dollar and sixty cents (US$1.60), unless previously converted into Common Stock, as herein provided, the entire outstanding principal amount of this Note, together with all interest accrued hereon, shall (without any surrender thereof or other action on the part of the Holder) be deemed to have been converted into such shares of Series A Preferred Stock, and cancelled ab initio, and shall thereafter be rendered null and void and of no further force or effect. 

3.

No Prepayment.

Unless otherwise consented to in writing by the Holder, the Company shall have no right to prepay all or any portion of the principal amount of this Note prior to the Preferred Stock Issuance Date.

4.

Notes.

  Payments of principal of, and interest on, this Note are to be made in lawful money of the United States of America at such place as provided in the Securities Purchase Agreement.  This Note is one of a series of up to $15,000,000 aggregate amount of 10% Convertible Exchangeable Notes (herein called the “Notes”) issued pursuant to the Securities Purchase Agreement, and is subject to other terms as set forth in the Securities Purchase Agreement.

5.

Registered Note.

This Note is a registered Note and, as provided in the Securities Purchase Agreement, upon surrender of this Note for registration of transfer, duly endorsed, or accompanied by a written instrument of transfer duly executed, by the registered Holder hereof or such Holder's attorney duly authorized in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee.  Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary.

6.

Conversion Rights.

a.

General.

(i)

Conversion.  The Holder of this Note shall have the right at any time or from time to time, to convert all or any part of the outstanding and unpaid principal amount of the Holder’s Note (and any accrued and unpaid interest thereon) into fully paid and non-assessable Common Stock, or any shares of capital stock or other securities of the Company into which such Common Stock shall hereafter be changed or reclassified at the Conversion Price. Any such conversion set forth in a Conversion Notice dated prior thereto, shall be deemed to be effective as of the date of such Conversion Notice.

(ii)

Conversion Amount.  The number of shares of Common Stock to be issued upon each conversion of the Holder’s Note shall be equal to (i) the Conversion 

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Amount (as defined below) divided by (ii) the applicable Conversion Price then in effect on the date specified in the Conversion Notice, in the form accompanying this Agreement delivered to the Company by the Holder in accordance with Section 6(d) below; provided that the Conversion Notice is submitted by facsimile (or by other means resulting in, or reasonably expected to result in, notice) to the Company before 6:00 p.m., New York, New York time on such conversion date (the “Conversion Date”).  The term “Conversion Amount” means, with respect to any conversion of the Holder’s Note, the amount of the Holder’s Note to be converted in such conversion.

(iii)

Conversion Limit.  In no event, at any time that the Company has any class of its securities registered under Section 12(b) or Section 12(g) of the Exchange Act, shall the Holder be entitled to convert any portion of the Holder’s Note in excess of that portion of the Holder’s Note upon conversion of which the sum of (i) the number of shares of Common Stock beneficially owned by the Holder and its affiliates (other than shares of Common Stock which may be deemed beneficially owned through the ownership of the unconverted portion of the Note or the unexercised or unconverted portion of any other security of the Company (including, without limitation, the Warrants issued by the Company pursuant to the Securities Purchase Agreement) subject to a limitation on conversion or exercise analogous to the limitations contained herein) and (ii) the number of shares of Common Stock issuable upon the conversion of the portion of the Holder’s Note with respect to which the determination of this proviso is being made, would result in beneficial ownership by the Holder and its affiliates of more than 9.99% of the outstanding shares of Common Stock.  For purposes of this Agreement, beneficial ownership shall be determined in accordance with Section 13(d) of the Exchange Act, and Regulations 13D-G thereunder, except as otherwise provided in clause (i) above.  The Holder may waive the provisions of this Section 6(a)(iii) as to itself (and solely as to itself) (i) upon not less than 61 days’ prior notice to the Company, and the provisions of this Section 6(a)(iii) shall continue to apply until such 61st day (or such later date as may be specified in such notice of waiver) or (ii) upon the occurrence of any event under Section 6(f)(i).  No conversion in violation of this Section 6(a)(iii), but otherwise in accordance here, shall affect the status of the Common Stock issued upon such conversion as validly issued, fully-paid and nonassessable.

b.

Definitions.  The capitalized terms below as used in this Section 6 shall have the following definitions.

(i)

Bloomberg.  The term “Bloomberg” shall mean Bloomberg, L.P. (or any successor to its function of reporting stock prices).

(ii)

Conversion Price.  The “Conversion Price” shall mean (U.S.) one dollars and sixty cents ($1.60); provided, that such Conversion Price shall be subject to adjustment as provided herein.

(iii)

Market Price.  The term “Market Price” means, as of any date, (i) the average of the last reported sale prices for the shares of Common Stock on a national securities exchange which is the principal trading market for the Common Stock for the ten (10) Trading Days immediately preceding such date as reported by 

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Bloomberg, or (ii) if no national securities exchange is the principal trading market for the shares of Common Stock, the average of the last reported sale prices on the principal trading market for the Common Stock during the same period as reported by Bloomberg, or (iii) if market value cannot be calculated as of such date on any of the foregoing bases, the Market Price shall be the fair market value as reasonably determined in good faith by (x) the Board of Directors of the Company or, (y) at the option of a majority-in-interest of the Holders of the outstanding Notes, by an independent investment bank of nationally recognized standing in the valuation of businesses similar to the business of the Company.  The manner of determining the Market Price of the Common Stock set forth in the foregoing definition shall apply with respect to any other security in respect of which a determination as to market value must be made hereunder.

(iv)

Trading Day.  The term “Trading Day” shall mean any day on which the Common Stock is traded for any period on the principal securities exchange or other securities market on which the Common Stock is then being traded.

c.

Authorized Shares.  The Company covenants that during the period the conversion right exists, the Company will reserve from its authorized and unissued Common Stock a sufficient number of shares, free from preemptive rights, to provide for the issuance of Common Stock upon the full conversion of the Holder’s Note and the other Notes issued pursuant to this Agreement (the “Reserved Amount”).  If the Company shall issue any securities or make any change to its capital structure which would change the number of shares of Common Stock into which the Notes shall be convertible at the then current Conversion Price, the Company shall at the same time make proper provision so that thereafter there shall be a sufficient number of shares of Common Stock authorized and reserved, free from preemptive rights, for conversion of the outstanding Notes.  The Company (i) acknowledges that it has irrevocably instructed its transfer agent to issue certificates for the Common Stock issuable upon conversion of the Holder’s Note, and (ii) agrees that its issuance of the Holder’s Note shall constitute full authority to its officers and agents who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for shares of Common Stock in accordance with the terms and conditions of the Holder’s Note.

d.

Method of Conversion.

(i)

Mechanics of Conversion.  Subject to Section 6(a), the Holder’s Note may be converted by the Holder in whole or in part, by (i) submitting to the Company a Conversion Notice (by facsimile or other reasonable means of communication dispatched on the Conversion Date prior to 6:00 p.m., New York, New York time) and (ii) subject to Section 6(d)(ii), surrendering the Holder’s Note at the principal office of the Company.

(ii)

Surrender of Note Upon Conversion.  Notwithstanding anything to the contrary set forth herein, upon conversion of the Holder’s Note in accordance with the terms hereof, the Holder shall not be required to physically surrender the Holder’s Note to the Company unless the entire unpaid principal amount of the Holder’s Note is so converted.  The Holder and the Company shall maintain records showing the principal 

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amount so converted and the dates of such conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of the Holder’s Note upon each such conversion.  In the event of any dispute or discrepancy, such records of the Company shall be controlling and determinative in the absence of manifest error.  Notwithstanding the foregoing, if any portion of the Holder’s Note is converted as aforesaid, the Holder may not transfer the Holder’s Note unless the Holder first physically surrenders the Holder’s Note to the Company, whereupon the Company will forthwith issue and deliver upon the order of the Holder a new Note of like tenor, registered as the Holder (upon payment by the Holder of any applicable transfer taxes) may request, representing in the aggregate the remaining unpaid principal amount of the Holder’s Note.  The Holder and any assignee, by acceptance of the Holder’s Note, acknowledge and agree that, by reason of the provisions of this paragraph, following conversion of a portion of the Holder’s Note, the unpaid and unconverted principal amount of the Holder’s Note represented by the Holder’s Note may be less than the amount stated on the face hereof.

(iii)

Delivery of Common Stock Upon Conversion.  Upon receipt by the Company from the Holder of a facsimile transmission (or other reasonable means of communication) of a Conversion Notice meeting the requirements for conversion as provided in this Section 6(d), the Company shall issue and deliver or cause to be issued and delivered to or upon the order of the Holder certificates for the Common Stock issuable upon such conversion within five (5) Business Days after the expiration of ninety (90) days following the date of consummation of the Liquidity Event (and, solely in the case of conversion of the entire unpaid principal amount hereof, surrender of the Holder’s Note) (such fifth Business Day being hereinafter referred to as the “Deadline”) in accordance with the terms hereof and the Purchase Agreement.

(iv)

Obligation of Company to Deliver Common Stock.  Upon delivery by the Holder to the Company of a Conversion Notice, the Holder shall be deemed to be the Holder of record of the Common Stock issuable upon such conversion, the outstanding principal amount and the amount of accrued and unpaid interest on the Holder’s Note shall be reduced to reflect such conversion, and, unless the Company defaults on its obligations under this Section 6, all rights with respect to the portion of the Holder’s Note being so converted shall forthwith terminate except the right to receive the Common Stock or other securities, cash or other assets, as herein provided, on such conversion.  If the Holder shall have given a Conversion Notice as provided herein, the Company’s obligation to issue and deliver the certificates for Common Stock shall be absolute and unconditional, irrespective of the absence of any action by the Holder to enforce the same, any waiver or consent with respect to any provision thereof, the recovery of any judgment against any Person or any action to enforce the same, any failure or delay in the enforcement of any other obligation of the Company to the Holder of record, or any setoff, counterclaim, recoupment, limitation or termination, or any breach or alleged breach by the Holder of any obligation to the Company, and irrespective of any other circumstance which might otherwise limit such obligation of the Company to the Holder in connection with such conversion.  The Conversion Date specified in the Conversion Notice shall be the Conversion Date so long as the 

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Conversion Notice is received by the Company before 6:00 p.m., New York, New York time, on such date.

(v)

Delivery of Common Stock by Electronic Transfer.  In lieu of delivering physical certificates representing the Common Stock issuable upon conversion, provided the Company’s transfer agent is participating in the Depository Trust Company (“DTC”) Fast Automated Securities Transfer program, upon request of the Holder and its compliance with the provisions contained in Section 6(a) and in this Section 6(d), the Company shall use its best efforts to cause its transfer agent to electronically transmit the Common Stock issuable upon conversion to the Holder by crediting the account of Holder’s Prime Broker with DTC through its Deposit Withdrawal Agent Commission system.

e.

Concerning the Shares. 

(i)

Legend.  The shares of Common Stock issuable upon conversion of the Holder’s Note may not be sold or transferred unless (A) such shares are sold pursuant to an effective registration statement under the Securities Act, or (B) the Company or its transfer agent shall have been furnished with an opinion of counsel (which opinion shall be in form, substance and scope customary for opinions of counsel in comparable transactions) to the effect that the shares to be sold or transferred may be sold or transferred pursuant to an exemption from such registration or (C) such shares are sold or transferred pursuant to Rule 144 under the Securities Act (or a successor rule) (“Rule 144”) or (D) such shares are sold or transferred outside the United States in accordance with Rule 904 of Regulation S under the Securities Act, or (E) such shares are transferred to an “affiliate” (as defined in Rule 144) of the Company who agrees to sell or otherwise transfer the shares only in accordance with this Section 6(e).  Except as otherwise provided in this Agreement (and subject to the removal provisions set forth below), until such time as the shares of Common Stock issuable upon conversion of the Holder’s Note have been registered under the Act as contemplated by the Registration Rights Agreement, otherwise may be sold pursuant to Rule 144 without any restriction as to the number of securities as of a particular date that can then be immediately sold, each certificate for shares of Common Stock issuable upon conversion of the Holder’s Note that has not been so included in an effective registration statement or that has not been sold pursuant to an effective registration statement or an exemption that permits removal of the legend, shall bear a legend substantially in the following form, as appropriate:

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “U.S. SECURITIES ACT”).  THE HOLDER HEREOF, BY PURCHASING SUCH SECURITIES, AGREES 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 REGULATION S UNDER THE U.S. SECURITIES ACT, (C) WITHIN THE UNITED STATES AFTER 

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REGISTRATION OR IN ACCORDANCE WITH THE EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE U.S. SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER, IF APPLICABLE, AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS, OR (D) WITHIN THE UNITED STATES IN A TRANSACTION THAT DOES NOT REQUIRE REGISTRATION UNDER THE U.S. SECURITIES ACT OR ANY APPLICABLE STATE SECURITIES LAWS AND THE HOLDER HAS PRIOR TO SUCH SALE FURNISHED TO THE CORPORATION AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE CORPORATION. 

(ii)

Removal of Legend.  The legend set forth above shall be removed and the Company shall issue to the Holder a new certificate therefor free of any transfer legend if (A) the Company or its transfer agent shall have received an opinion of counsel, in form, substance and scope customary for opinions of counsel in comparable transactions, to the effect that a public sale or transfer of such Common Stock may be made without registration under the Act and the shares are so sold or transferred, (B) such Holder provides the Company or its transfer agent with reasonable assurances that the Common Stock issuable upon conversion of the Holder’s Note (to the extent such securities are deemed to have been acquired on the same date) can be sold pursuant to Rule 144 or (C) in the case of the Common Stock issuable upon conversion of the Holder’s Note, such security is registered for sale by the Holder under an effective registration statement filed under the Act or otherwise may be sold pursuant to Rule 144 without any restriction as to the number of securities as of a particular date that can then be immediately sold.  The Company shall cause its counsel to issue a legal opinion to the Company’s transfer agent promptly after the effective date of any registration statement under the Act registering the resale of the Common Stock issuable upon conversion of the Notes if required by the Company’s transfer agent to effect the removal of the legend hereunder.  Nothing in the Holder’s Note shall (x) limit the Company’s obligation under the Registration Rights Agreement or (y) affect in any way the Holder’s obligations to comply with applicable prospectus delivery requirements upon the resale of the securities referred to herein.

f.

Effect of Certain Events.

(i)

Adjustment Due to Merger, Consolidation, Etc.  If, at any time when any of this Note is issued and outstanding, there shall be any merger, consolidation, exchange of shares, recapitalization, reorganization, or other similar event, as a result of which shares of Common Stock of the Company shall be changed into the same or a different number of shares of another class or classes of stock or securities of the Company or another entity, or in case of any sale or conveyance of all or substantially all of the assets of the Company other than in connection with a plan of complete liquidation of the Company, then the Holder of this Note shall thereafter have the right to receive upon conversion of the Holder’s Note, upon the basis and upon the terms and conditions specified herein and in lieu of the shares of Common Stock immediately theretofore issuable upon conversion, such stock, securities or assets which the Holder would have 

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been entitled to receive in such transaction had the Holder’s Note been converted in full immediately prior to such transaction (without regard to any limitations on conversion set forth herein), and in any such case appropriate provisions shall be made with respect to the rights and interests of the Holder of the Holder’s Note to the end that the provisions hereof (including, without limitation, provisions for adjustment of the Conversion Price and of the number of shares issuable upon conversion of the Note) shall thereafter be applicable, as nearly as may be practicable in relation to any securities or assets thereafter deliverable upon the conversion hereof.  The Company shall not effect any transaction described in this Section 6(f)(i) unless (a) it first gives, to the extent practicable, thirty (30) days prior written notice (but in any event at least fifteen (15) days prior written notice) of the record date of the special meeting of stockholders to approve, or if there is no such record date, the consummation of, such merger, consolidation, exchange of shares, recapitalization, reorganization or other similar event or sale of assets (during which time the Holder shall be entitled to convert the Holder’s Note notwithstanding Section 6(a)(iii)) and (b) the resulting successor or acquiring entity (if not the Company) assumes by written instrument the obligations of this Section 6(f)(i).  The above provisions shall similarly apply to successive consolidations, mergers, sales, transfers or share exchanges.

(ii)

Adjustment Due to Distribution.  If, at any time when this Note is issued and outstanding, the Company shall declare or make any distribution of its assets (or rights to acquire its assets) to Holders of Common Stock as a dividend, stock repurchase, by way of return of capital or otherwise (including any dividend or distribution to the Company’s shareholders in cash or shares (or rights to acquire shares) of capital stock of a subsidiary (i.e., a spin-off)) (a “Distribution”), then the Holder of this Note shall be entitled, upon any conversion of the Holder’s Note after the date of record for determining shareholders entitled to such Distribution, to receive the amount of such assets which would have been payable to the Holder with respect to the shares of Common Stock issuable upon such conversion had such Holder been the Holder of such shares of Common Stock on the record date for the determination of shareholders entitled to such Distribution and the Note shall be deemed repaid by the amount of the fair value of the Distribution.

(iii)

Adjustment Due to Dilutive Issuance.  If, at any time when any Notes are issued and outstanding, the Company issues or sells, or in accordance with this Section 6(f) is deemed to have issued or sold, any shares of Common Stock for no consideration or for a consideration per share (before deduction of reasonable expenses or commissions or underwriting discounts or allowances in connection therewith) less than the Conversion Price in effect on the date of such issuance (or deemed issuance) of such shares of Common Stock (a “Dilutive Issuance”), then immediately upon the Dilutive Issuance, the Conversion Price will be reduced to the price determined by multiplying the Conversion Price in effect immediately prior to the Dilutive Issuance by a fraction, (A) the numerator of which is an amount equal to the sum of (x) the number of shares of Common Stock actually outstanding immediately prior to the Dilutive Issuance, plus (y) the quotient of the aggregate consideration, calculated as set forth in Section 6(f)(iv) hereof, received by the Company upon such Dilutive Issuance divided by the Conversion Price in effect immediately prior to the Dilutive Issuance, and (B) the denominator of 

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which is the Common Stock Deemed Outstanding (as defined below) immediately after the Dilutive Issuance; provided that only one adjustment will be made for each Dilutive Issuance.  The term “Common Stock Deemed Outstanding” shall mean the number of shares of Common Stock actually outstanding (not including shares of Common Stock held in the treasury of the Company), plus (i) pursuant to Section 6(f)(iv)(1) hereof, the maximum total number of shares of Common Stock issuable upon the exercise of Options, as of the date of such issuance or grant of such Options, if any, and (ii) pursuant to Section 6(f)(iv)(2) hereof, the maximum total number of shares of Common Stock issuable upon conversion or exchange of Convertible Securities, as of the date of issuance of such Convertible Securities, if any.  No adjustment to the Conversion Price shall have the effect of increasing the Conversion Price above the Conversion Price in effect immediately prior to such adjustment.

(iv)

Effect on Conversion Price of Certain Events.  For purposes of determining the adjusted Conversion Price, the following will be applicable:

1.

Issuance of Rights or Options.  If the Company in any manner issues or grants any warrants, rights or options, whether or not immediately exercisable, to subscribe for or to purchase Common Stock or other securities convertible into or exchangeable for Common Stock (“Convertible Securities”) (such warrants, rights and options to purchase Common Stock or Convertible Securities are hereinafter referred to as “Options”) and the price per share for which Common Stock is issuable upon the exercise of such Options is less than the Conversion Price on the date of issuance or grant of such Options, then the maximum total number of shares of Common Stock issuable upon the exercise of all such Options will, as of the date of the issuance or grant of such Options, be deemed to be outstanding and to have been issued and sold by the Company for such price per share.  For purposes of the preceding sentence, the “price per share for which Common Stock is issuable upon the exercise of such Options” is determined by dividing (i) the total amount, if any, received or receivable by the Company as consideration for the issuance or granting of all such Options, plus the minimum aggregate amount of additional consideration, if any, payable to the Company upon the exercise of all such Options, plus, in the case of Convertible Securities issuable upon the exercise of such Options, the minimum aggregate amount of additional consideration payable upon the conversion or exchange thereof at the time such Convertible Securities first become convertible or exchangeable, by (ii) the maximum total number of shares of Common Stock issuable upon the exercise of all such Options (assuming full conversion of Convertible Securities, if applicable).  No further adjustment to the Conversion Price will be made upon the actual issuance of such Common Stock upon the exercise of such Options or upon the conversion or exchange of Convertible Securities issuable upon exercise of such Options.

2.

Issuance of Convertible Securities.  If the Company in any manner issues or sells any Convertible Securities, whether or not immediately convertible (other than where the same are issuable upon the exercise of Options) and the price per share for which Common Stock is issuable upon such conversion or exchange is less than the Conversion Price on the date of issuance, then the maximum total number of shares of Common Stock issuable upon the conversion or exchange of all such 

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Convertible Securities will, as of the date of the issuance of such Convertible Securities, be deemed to be outstanding and to have been issued and sold by the Company for such price per share.  For the purposes of the preceding sentence, the “price per share for which Common Stock is issuable upon such conversion or exchange” is determined by dividing (i) the total amount, if any, received or receivable by the Company as consideration for the issuance or sale of all such Convertible Securities, plus the minimum aggregate amount of additional consideration, if any, payable to the Company upon the conversion or exchange thereof at the time such Convertible Securities first become convertible or exchangeable, by (ii) the maximum total number of shares of Common Stock issuable upon the conversion or exchange of all such Convertible Securities.  No further adjustment to the Conversion Price will be made upon the actual issuance of such Common Stock upon conversion or exchange of such Convertible Securities.

3.

Change in Option Price or Conversion Rate.  If there is a change at any time in (i) the amount of additional consideration payable to the Company upon the exercise of any Options; (ii) the amount of additional consideration, if any, payable to the Company upon the conversion or exchange of any Convertible Securities; or (iii) the rate at which any Convertible Securities are convertible into or exchangeable for Common Stock (other than under or by reason of provisions designed to protect against dilution), the Conversion Price in effect at the time of such change will be readjusted to the Conversion Price which would have been in effect at such time had such Options or Convertible Securities still outstanding provided for such changed additional consideration or changed conversion rate, as the case may be, at the time initially granted, issued or sold.

4.

Subdivision or Combination of Common Stock.  If the Company at any time subdivides (by any stock split, stock dividend, recapitalization, reorganization, reclassification or otherwise) the shares of Common Stock acquirable hereunder into a greater number of shares, then, after such date of record for effecting such subdivision, the Conversion Price in effect immediately prior to such subdivision will be proportionately reduced.  If the Company at any time combines (by reverse stock split, recapitalization, reorganization, reclassification or otherwise) the shares of Common Stock acquirable hereunder into a smaller number of shares, then, after the date of record for effecting such combination, the Conversion Price in effect immediately prior to such combination shall be proportionately increased.

5.

Treatment of Expired Options and Unexercised Convertible Securities.  If, in any case, the total number of shares of Common Stock issuable upon exercise of any Option or upon conversion or exchange of any Convertible Securities is not, in fact, issued and the rights to exercise such Option or to convert or exchange such Convertible Securities shall have expired or terminated, the Conversion Price then in effect will be readjusted to the Conversion Price which would have been in effect at the time of such expiration or termination had such Option or Convertible Securities, to the extent outstanding immediately prior to such expiration or termination (other than in respect of the actual number of shares of Common Stock issued upon exercise or conversion thereof), never been issued.

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6.

Calculation of Consideration Received.  If any Common Stock, Options or Convertible Securities are issued, granted or sold for cash, the consideration received therefor for purposes of the Holder’s Note will be the amount received by the Company therefor, before deduction of reasonable commissions, underwriting discounts or allowances or other reasonable expenses paid or incurred by the Company in connection with such issuance, grant or sale.  In case any Common Stock, Options or Convertible Securities are issued or sold for a consideration part or all of which shall be other than cash, the amount of the consideration other than cash received by the Company will be the fair value of such consideration, except where such consideration consists of securities, in which case the amount of consideration received by the Company will be the Market Price thereof as of the date of receipt.  In case any Common Stock, Options or Convertible Securities are issued in connection with any acquisition, merger or consolidation in which the Company is the surviving corporation, the amount of consideration therefor will be deemed to be the fair value of such portion of the net assets and business of the non-surviving corporation as is attributable to such Common Stock, Options or Convertible Securities, as the case may be.  The fair value of any consideration other than cash or securities will be determined in good faith by the Board of Directors of the Company.

7.

Exceptions to Adjustment of Conversion Price.  No adjustment to the Conversion Price will be made (A) upon the issuance of shares of Common Stock or options or warrants to purchase Common Stock to employees of the Company pursuant to any stock or option plan duly adopted by the Board of Directors of the Company on or before June 14, 2006, or (B) the issuance of shares of Common Stock upon exercise of any of the Warrants.

(v)

Notice of Adjustments.  Upon the occurrence of each adjustment or readjustment of the Conversion Price as a result of the events described in this Section 6(f), the Company, at its expense, shall promptly compute such adjustment or readjustment and prepare and furnish to the Holder of this Note a certificate setting forth such adjustment or readjustment and showing in detail the facts upon which such adjustment or readjustment is based.  The Company shall, upon the written request at any time of any Holder of Notes, furnish to such Holder a like certificate setting forth (i) such adjustment or readjustment, (ii) the Conversion Price at the time in effect and (iii) the number of shares of Common Stock and the amount, if any, of other securities or property which at the time would be received upon conversion of such Holder’s Note.

g.

Status as Shareholder.  Upon submission of a Conversion Notice by the Holder of this Note, (i) the shares covered thereby (other than the shares, if any, which cannot be issued because their issuance would exceed such Holder’s allocated portion of the Reserved Amount) shall be deemed converted into shares of Common Stock and (ii) the Holder’s rights as a Holder of such converted portion of the Holder’s Note shall cease and terminate, excepting only the right to receive certificates for such shares of Common Stock and to any remedies provided herein or otherwise available at law or in equity to such Holder because of a failure by the Company to comply with the terms of the Holder’s Note.  Notwithstanding the foregoing, if a Holder has not received certificates for all shares of Common Stock prior to the third (3rd) Business Day after the Deadline 

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with respect to a conversion of any portion of the Holder’s Note for any reason, then the Holder may elect at such Holder’s option to regain the rights of a Holder of the Holder’s Note with respect to such attempted converted portions of the Holder’s Note and the Company shall, as soon as practicable, return such attempted converted Note to the Holder or, if the Note has not been surrendered, adjust its records to reflect that such portion of the Holder’s Note has not been converted.  In all cases, the Holder shall retain all of its rights and remedies for the Company’s failure to convert the Holder’s Note.

7.

Applicable Law.

This Note shall be construed and enforced in accordance with, and the rights of the parties shall be governed by, the law of the State of New York excluding choice-of-law principles of the law of such State that would require the application of the laws of a jurisdiction other than such State. 

8.

Facsimile Signatures.

This Note may be executed by facsimile signature which shall, for all purposes be deemed to be as legally valid and binding upon the Company as a ribbon original signature.

9.

Portfolio Interest.

It is intended that all interest paid hereunder shall constitute “portfolio interest” within the meaning of Section 871(h) of the Internal Revenue Code of 1986, as amended, and the Treasury Regulations promulgated thereunder. 

the balance of this instrument is intentionally left blank - signature page follows

- 12 -

IN WITNESS WHEREOF, the Company has executed and delivered this Note the date and year first above written.

VISCORP, INC.

(to be renamed Tianyin Pharmaceutical Co., Inc.)

By: _______________________________

Name:  Guoqing Jiang, 

Title:  

CEO

- 13 -Viscorp, Inc. Exhibit 4.3 1/18/2008

EXHIBIT “D”

REGISTRATION RIGHTS AGREEMENT

THIS REGISTRATION RIGHTS AGREEMENT (the “Agreement”) is made as of January 16, 2008 by and among VISCORP, INC. (to be renamed TIANYIN PHARMACEUTICAL CO., INC.), a Delaware corporation (the “Company”), and the Persons who have executed the counterpart signature pages of this Agreement as an Investor (the “Investor”).

WITNESSETH:

WHEREAS, pursuant to the terms of a securities purchase agreement, dated as of January 16, 2008, between the Company, certain of its Subsidiaries, the Investor and other Persons (the “Securities Purchase Agreement”), the Investor  has: 

(a)

purchased 10% convertible exchangeable notes of the Company due June 30, 2009 (the “Notes”) that, upon the filing of the Series A Certificate of Designation with the Secretary of State of the State of Delaware shall be exchanged for Series A Preferred Stock which Series A Preferred Stock shall be convertible at the option of the holder(s) into shares of Common Stock of the Company (the “Conversion Shares”); and

(b)

received five year warrants (the “Class A Warrants”) and seven year warrants (the “Class B Warrants” and with the Class A Warrants, collectively, the “Warrants”) entitling the Investor to purchase shares of Common Stock of the Company (the “Warrant Shares”) of the Company; and

WHEREAS, the Company has agreed with the Investor to grant certain registration rights with respect to the Conversion Shares and the Warrant Shares;

NOW THEREFORE, in consideration of the foregoing, the parties agree as follows:

1.

Definitions.  All capitalized terms not otherwise defined in this Agreement shall have the same meaning as they are defined in the Securities Purchase Agreement.  In addition, as used in this Agreement, the following terms shall have the following meanings:

Business Day - shall mean any day other than Saturday or Sunday or any other day when Citibank NA, New York, New York, is not open for business.

Commission or SEC - shall mean the United States Securities and Exchange Commission, or any other federal agency at the time administering the Securities Act. 

“Common Stock” shall mean the common stock, $0.001 par value per share of the Company.

 

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, or any similar federal statute and the rules and regulations thereunder, all as the same shall be in effect at the time.

“Holder” shall mean the Investor and any other holder of outstanding Registrable Securities or anyone who holds outstanding Registrable Securities to whom the registration rights conferred by this Agreement have been transferred in compliance with this Agreement.

“Initiating Holders” shall mean any Holder or Holders of at least fifty-one percent (51%) of the Registrable Securities then outstanding.

“Register,” “registered” and “registration” shall refer to a registration effected by preparing and filing a Registration Statement in compliance with the Securities Act, and the declaration or ordering of the effectiveness of such Registration Statement, and compliance with applicable state securities laws of such states in which Holders notify the Company of their intention to offer Registrable Securities.

“Registrable Securities” shall mean all of the following to the extent the same have not been sold to the public (i) any and all of the Warrant Shares; (ii) any and all of the Conversion Shares, (iii) any shares of capital stock issued in respect of the Warrant Shares or Conversion Shares referred to in (i) or (ii) above in any reorganization; or (iv) any shares of capital stock issued in respect of the Warrant Shares, Conversion Shares or capital stock referred to in (i), (ii) or (iii) as a result of a stock split, stock dividend, recapitalization or combination. Notwithstanding the foregoing, Registrable Securities shall not include otherwise Registrable Securities (i) sold by a person in a transaction in which his rights under this Agreement are not properly assigned; or (ii) (A) sold to or through a broker or dealer or underwriter in a public distribution or a public securities transaction, or (B) sold in a transaction exempt from the registration and prospectus delivery requirements of the Securities Act under Section 4(1) thereof so that all transfer restrictions, and restrictive legends with respect thereto, if any, are removed upon the consummation of such sale or (C) the registration rights associated with such securities have been terminated pursuant to Section 12 of this Agreement.  Notwithstanding the foregoing, the Registrable Securities shall cease to be Registrable Securities if and to the extent that the Holder is able to dispose of all of such Holder’s Registrable Securities (i) in one three-month period pursuant to the provisions of Rule 144, or (ii) otherwise pursuant to the provisions of Rule 144(k).

“Rule 144” shall mean Rule 144, as amended from time to time, under the Securities Act or any successor or similar rule as may be enacted by the Commission from time to time, but shall not include Rule 144A.

“Rule 144A” shall mean Rule 144A under the Securities Act or any successor or similar rule as may be enacted by the Commission from time to time, but shall not include Rule 144.

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“Securities Act” shall mean the Securities Act of 1933, as amended, or any similar federal statute and the rules and regulations thereunder, all as the same shall be in effect at the time.

2.

Restrictions on Transferability.  The Registrable Securities shall not be sold, assigned, transferred or pledged except upon the conditions specified in this Agreement, which conditions are intended to ensure compliance with the provisions of the Securities Act. Each Holder will cause any proposed purchaser, assignee, transferee, or pledgee of the Registrable Securities held by a Holder to agree to take and hold such securities subject to the provisions and upon the conditions specified in this Agreement.

3.

Restrictive Legend.  Each certificate representing Registrable Securities shall (unless otherwise permitted by the provisions of Section 4 below) be stamped or otherwise imprinted with a legend as provided in Warrant (in addition to any legend required under applicable state securities laws or otherwise).  Each Holder consents to the Company making a notation on its records and giving instructions to any transfer agent of the Registrable Securities in order to implement the restrictions on transfer established in this Agreement.

4.

Notice of Proposed Transfer.  The Holder of each certificate representing Registrable Securities, by acceptance thereof, agrees to comply in all respects with the provisions of this Section 5.  Each such Holder agrees not to make any disposition of all or any portion of any Registrable Securities unless and until:

a.

There is in effect a Registration Statement under the Securities Act covering such proposed disposition and such disposition is made in accordance with such Registration Statement; or

b.

Such Holder shall have notified the Company of the proposed disposition and shall have furnished the Company with a detailed statement of the circumstances surrounding the proposed disposition, and if reasonably requested by the Company, such Holder shall furnish the Company with an opinion of counsel, reasonably satisfactory to the Company that such disposition shall not require registration of such shares under the Securities Act.  It is agreed, however, that no such opinion will be required for Rule 144 or Rule 144A transactions, except as required by the Company’s transfer agent or in unusual circumstances.

c.

Notwithstanding the provisions of paragraphs (a) and (b) above, no such Registration Statement or opinion of counsel shall be necessary for a transfer by a Holder which is a partnership to a partner of such partnership or a retired partner of such partnership who retires after the date hereof, or to the estate of any such partner or retired partner or the transfer by gift, will, or intestate succession of any partner to his spouse or siblings, lineal descendants or ancestors of such partner or spouse, provided, however, that such transferee agrees in writing to be subject to all of the terms hereof to the same extent as if he were an original Holder hereunder.

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5.

Resale Registration Statement.

Not later than thirty (30) days after the Series A Preferred Stock Issuance, the Company shall file with the SEC a Registration Statement (the “Resale Registration Statement”) registering for resale at prevailing market prices all of the Registrable Securities.  The Company shall use its best efforts to obtain effectiveness of the Registration Statement with respect to all Registrable Securities as soon thereafter as is practicable, and shall respond to all oral and written comments from the staff of the SEC.  

a.

The parties shall endeavor to take all actions to obtain effectiveness of such Resale Registration Statement or, if and to the extent such rule becomes available, utilize the re-sale exemptions provided under Rule 144 in order to provide liquidity for these shares.  

b.

In the event that the Company shall for any reason fail to:

(i)

file with the SEC the initial Resale Registration Statement within thirty (30) days after the date of the Series A Preferred Stock Issuance (the “Required Filing Date”); or

(ii)

cause such Resale Registration Statement to be declared effective by the SEC within one hundred and twenty (120) days after the filing of such initial Resale Registration Statement (the “Required Effective Date”),

then and in either such event, the Company shall pay to the Investors a cash amount that shall be equal to two percent (2%) of the aggregate principal amount of the Notes or aggregate Stated Value of the Series A Preferred Stock (as applicable) for each month (or part thereof) following the Required Filing Date that the Resale Registration Statement shall not have been duly filed with the SEC, and/or for each month (or part thereof) following the Required Effective Date that the Resale Registration Statement shall not have been declared effective by the SEC (the “Late Registration Payment”).  Such Late Registration Payment shall be paid to the Investors within 30 days after the end of each month in which such Late Registration Payment shall be payable, and until the Company shall have complied with the provisions of this Section 5b.  Notwithstanding the foregoing, the aggregate amount of the Late Registration Payment shall not exceed ten percent (10%) of the aggregate principal amount of the Notes or aggregate Stated Value of the Series A Preferred Stock (as applicable).  

Failure by the Company to timely make any or all of such Late Registration Payments shall constitute an Event of Default under the Notes.

6.

Piggyback Registration.

a.

If at any time or from time to time, the Company shall determine to register any of its securities, for its own account or the account of any of its shareholders, other than (A) a registration relating solely to employee benefit plans, (B) a registration relating solely to an SEC Rule 145 transaction, or (C) a Registration Statement on any form (excluding Form SB-2, S-1, S-3, F-1 or F-3, or their successor forms) which does not include substantially the same 

4

information as would be required to be included in a Resale Registration Statement covering the sale of Registrable Securities, the Company will:

i.

give to each Holder written notice thereof as soon as practicable prior to filing the Registration Statement; and

ii.

use its best efforts include in such registration and in any underwriting involved therein, all the Registrable Securities specified in a written request or requests, made within fifteen (15) days after receipt of such written notice from the Company, by any Holder or Holders, except as set forth in subsection 6(b) below.

b.

If the registration is for a registered public offering involving an underwriting, the Company shall so advise the Holders as a part of the written notice given pursuant to Section 6(a)(i).  In such event, the right of any Holder to registration pursuant to Section 6 shall be conditioned upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their securities through such underwriting shall (together with the Company and the other holders distributing their securities through such underwriting) enter into an underwriting agreement in customary form with the underwriter or underwriters selected for such underwriting by the Company.  Notwithstanding any other provision of this Section 6, it is anticipated and, by their execution of this Agreement, each Holder acknowledges, that the managing underwriter(s):

(i)

 may require that each Holder including Registrable Securities in such registered underwritten public offering agree to “lock up” such Registrable Securities and refrain from effecting any sale of distribution of such Registrable Securities for a period of up to one hundred and eighty (180) days following the effective date of the Registration Statement in respect of such underwritten public offering by the Company; or 

(ii)

may determine that marketing factors require: (A) either a limitation on the number of shares to be underwritten, in which event, the managing underwriter(s) may limit the number of Registrable Securities to be included in the registration and underwriting; or (B) that all of the Registrable Securities must be excluded entirely from such underwritten public offering registration for the Company (provided that no shares held by officers and directors of the Company, other than Registrable Securities that may be owned by officers and directors, shall be included in the registration and underwriting). 

c.

The Company shall so advise all Holders and the other Holders distributing their securities through such underwriting pursuant to piggyback registration rights similar to this Section 6, and the number of shares of Registrable Securities and other securities that may be included in the registration and underwriting shall be allocated among all Holders and other holders in proportion, as nearly as practicable, to the respective amounts of Registrable Securities held by such Holders and other securities held by other holders at the time of filing the Registration Statement. If any Holder disapproves of the terms of any such underwriting, he may elect to withdraw therefrom by written notice to the Company and the managing underwriter. If, by the withdrawal of such Registrable Securities, a greater number of Registrable Securities held by other 

5

Holders may be included in such registration (up to the limit imposed by the underwriters), the Company shall offer to all Holders who have included Registrable Securities in the registration the right to include additional Registrable Securities. Any Registrable Securities excluded or withdrawn from such underwriting shall be withdrawn from such registration.

7.

Expenses of Registration.  In addition to the fees and expenses contemplated by Section 8 hereof, all expenses incurred in connection with all registrations pursuant to Section 5 or Section 6 hereof, including without limitation all registration, filing and qualification fees, printing expenses, and all fees and disbursements of counsel for the Company and any reasonable fees for legal counsel to the Investor and all other Holders of Registrable Securities (provided that any fees for counsel shall be approved by the Company in writing in advance if greater then $5,000), and expenses of any special audits of the Company’s financial statements incidental to or required by such registration, shall be borne by the Company, except that the Company shall not be required to pay underwriters’ fees, discounts or commissions relating to Registrable Securities or fees of a separate legal counsel of a Holder other than the counsel described above.

8.

Registration Procedures.  In the case of each registration affected by the Company pursuant to this Agreement, the Company will keep each Holder participating therein advised in writing as to the initiation of each registration and as to the completion thereof. In addition, at its expense the Company will:

a.

keep such registration pursuant to Section 5 continuously effective until all of the securities covered by such Registration Statement have been sold pursuant to such Registration Statement or all of the Registrable Securities covered by such Registration Statement may be sold without registration under Rule 144 of the Securities Act;

b.

promptly prepare and file with the Commission such amendments and supplements to such Registration Statement and the prospectus used in connection therewith as may be necessary to comply with the provisions of the Securities Act, and to keep such Registration Statement effective for that period of time specified in Section 9(a) above;

c.

furnish such number of prospectuses and other documents incident thereto as a Holder from time to time may reasonably request;

d.

use reasonable best efforts to obtain the withdrawal of any order suspending the effectiveness of a Registration Statement, or the lifting of any suspension of the qualification of any of the Registrable Securities for sale in any jurisdiction, at the earliest possible moment;

e.

register or qualify such Registrable Securities for offer and sale under the securities or blue sky laws of such jurisdictions as any Holder or underwriter reasonably requires, and keep such registration or qualification effective during the period set forth in Section 9(a) above;

6

f.

cause all Registrable Securities covered by such registrations to be listed or quoted on each securities exchange, including the American Stock Exchange, on which similar securities issued by the Company are then listed or quoted,

g.

enter into such customary agreements (including underwriting agreements in customary form) and take all such other actions as the holders of a majority of the Registrable Securities being sold or the underwriters, if any, reasonably, request in order to expedite or facilitate the disposition of such Registrable Securities (including, without limitation, effecting a stock split or a combination of shares);

h.

make available for inspection upon reasonable request by any seller of Registrable Securities  and any attorney, accountant or other agent retained by any such seller or underwriter, all financial and other records, pertinent corporate documents and properties of the Company, and cause the Company’s officers, directors, employees and independent accountants to supply all information reasonably requested by any such seller, underwriter, attorney, accountant or agent in connection with such Registration Statement;

i.

notify each Holder, at any time a prospectus covered by such Registration Statement is required to be delivered under the Securities Act, of the happening of any event of which it has knowledge as a result of which the prospectus included in such Registration Statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances then existing;

j.

take such other actions as shall be reasonably requested by any Holder.

9.

Indemnification.

a.

In the event of a registration of any of the Registrable Securities under the Securities Act pursuant to Section 5 or Section 6 of this Agreement, the Company will indemnify and hold harmless each Holder of such Registrable Securities thereunder and each other person, if any, who controls such Holder within the meaning of the Securities Act, against any losses, claims, damages or liabilities, joint or several, to which such Holder, underwriter or controlling person may become subject under the Securities Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any Registration Statement under which such Registrable Securities were registered under the Securities Act, any preliminary prospectus or final prospectus contained therein, or any amendment or supplement thereof, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, or any violation by the Company of any rule or regulation promulgated under the Securities Act or any state securities law applicable to the Company and relating to action or inaction required of the Company in connection with any such registration, and will reimburse each such Holder, each of its officers, directors and partners, and each person controlling such Holder, each such underwriter and each person who controls any such underwriter, for any reasonable legal 

7

and any other expenses incurred in connection with investigating, defending or settling any such claim, loss, damage, liability or action, provided that the Company will not be liable in any such case to the extent that any such claim, loss, damage or liability arises out of or is based on any untrue statement or omission based upon written information furnished to the Company by an instrument duly executed by such Holder or underwriter specifically for use therein.

b.

Each Holder will, if Registrable Securities held by or issuable to such Holder are included in the securities as to which such registration is being effected, indemnify and hold harmless the Company, each of its directors and officers, each underwriter, if any, of the Company’s securities covered by such a Registration Statement, each person who controls the Company and each underwriter within the meaning of the Securities Act, and each other such Holder, each of its officers, directors and partners and each person controlling such Holder, against all claims, losses, expenses, damages and liabilities (or actions in respect thereof) arising out of or based on any untrue statement (or alleged untrue statement) of a material fact contained in any such Registration Statement, prospectus, offering circular or other document, or any omission (or alleged omission) to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and will reimburse the Company, such Holders, such directors, officers, partners, persons or underwriters for any reasonable legal or any other expenses incurred in connection with investigating, defending or settling any such claim, loss, damage, liability or action, in each case to the extent, but only to the extent, that such untrue statement (or alleged untrue statement) or omission (or alleged omission) is made in such Registration Statement, prospectus, offering circular or other document in reliance upon and in conformity with written information furnished to the Company by an instrument duly executed by such Holder specifically for use therein; provided, however, the total amount for which any Holder, its officers, directors and partners, and any person controlling such Holder, shall be liable under this Section 10(b) shall not in any event exceed the aggregate proceeds received by such Holder from the sale of Registrable Securities sold by such Holder in such registration.

c.

Each party entitled to indemnification under this Section 10 (the “Indemnified Party”) shall give notice to the party required to provide indemnification (the “Indemnifying Party”) promptly after such Indemnified Party has actual knowledge of any claims as to which indemnity may be sought, and shall permit the Indemnifying Party to assume the defense of any such claim or any litigation resulting therefrom, provided that counsel for the Indemnifying Party, who shall conduct the defense of such claim or litigation, shall be approved by the Indemnified Party (whose approval shall not be unreasonably withheld), and the Indemnified Party may participate in such defense at such party’s expense, and provided further that the failure of any Indemnified Party to give notice as provided herein shall not relieve the Indemnifying Party of its obligations hereunder, unless such failure resulted in actual detriment to the Indemnifying Party. No Indemnifying Party, in the defense of any such claim or litigation, shall, except with the consent of each Indemnified Party, consent to entry of any judgment or enter into any settlement which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party of a release from all liability in respect of such claim or litigation.

d.

Notwithstanding the foregoing, to the extent that the provisions on indemnification contained in the underwriting agreements entered into among the selling Holders, the Company and the underwriters in connection with the underwritten public offering are in 

8

conflict with the foregoing provisions, the provisions in the underwriting agreement shall be controlling as to the Registrable Securities included in the public offering; 

e.

If the indemnification provided for in this Section 9 is held by a court of competent jurisdiction to be unavailable to an indemnified party with respect to any loss, liability, claim, damage or expense referred to therein, then the indemnifying party, in lieu of indemnifying such indemnified party thereunder, shall contribute to the amount paid or payable by such indemnified party as a result of such loss, liability, claim, damage or expense in such proportion as is appropriate to reflect the relative fault of the indemnifying party on the one hand and of the indemnified party on the other hand in connection with the statements or omissions which resulted in such loss, liability, claim, damage or expense as well as any other relevant equitable considerations. The relevant fault of the indemnifying party and the indemnified party shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission to state a material fact relates to information supplied by the indemnifying party or by the indemnified party and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. Notwithstanding the foregoing, the amount any Holder shall be obligated to contribute pursuant to this Section 9(e) shall be limited to an amount equal to the proceeds to such Holder of the Restricted Securities sold pursuant to the Registration Statement which gives rise to such obligation to contribute (less the aggregate amount of any damages which the Holder has otherwise been required to pay in respect of such loss, claim, damage, liability or action or any substantially similar loss, claim, damage, liability or action arising from the sale of such Restricted Securities).

f.

The indemnification provided by this Section 10 shall be a continuing right to indemnification and shall survive the registration and sale of any securities by any Person entitled to indemnification hereunder and the expiration or termination of this Agreement.

10.

Information by Holder.  The Holder or Holders of Registrable Securities included in any registration shall promptly furnish to the Company such information regarding such Holder or Holders and the distribution proposed by such Holder or Holders as the Company may request in writing and as shall be required in connection with any registration referred to herein.

11.

Rule 144 Reporting.  With a view to making available to Holders of Registrable Securities the benefits of certain rules and regulations of the SEC which may permit the sale of the Registrable Securities to the public without registration, the Company agrees at all times to file with the Commission all reports and other documents required of the Company under the Securities Act and the Exchange Act.

12.

Transfer of Registration Rights.  The rights to cause the Company to register Registrable Securities of a Holder and keep information available granted to a Holder by the Company under Section 5 or Section 6 of this Agreement may be assigned by a Holder to any partner or shareholder of such Holder, to any other Holder, or to a transferee or assignee; provided, that the Company is given written notice by the Holder at the time of or within a reasonable time after said transfer, stating the name and address of said transferee or assignee and identifying the securities with respect to which such registration rights are being assigned.

9

13.

Termination of Rights.  The rights of any particular Holder to cause the Company to register securities under Section 5 or Section 6 of this Agreement shall terminate with respect to such Holder at such time that such Holder is able to dispose of all of such Holder’s Registrable Securities (i) in one three-month period pursuant to the provisions of Rule 144, provided that such Holder holds not more than one percent (1%) of the outstanding voting stock of the Company, or (ii) otherwise pursuant to the provisions of Rule 144(k).

14

Remedies upon Default or Delay.  Without limitation of any other remedy available to a Holder under applicable law or otherwise, if the Company shall (1) fail to register Registrable Securities after it shall have been requested to do so by a Holder or otherwise required to do so in accordance with Section 5 or Section 6 of this Agreement, or (2) fail to perform any of its obligations hereunder and as a result of such failure Holders have not been able to sell their Registrable Securities, or (3) act or fail to act in any manner such that one or more Holders have been delayed in the sale of their Registrable Securities, which delay is not expressly permitted by this Agreement, then any Holder adversely affected by such action, failure or delay shall be entitled to the relief set forth in Section 5 or Section 6 above.

15.

Miscellaneous.

a.

Amendments. This Agreement may be amended only by a writing signed by the Holders of more than fifty percent (50%) of the Registrable Securities, as constituted from time to time. The Holders hereby consent to future amendments to this Agreement that permit future investors, other than employees, officers or directors of the Company, to be made parties hereto and to become Holders of Registrable Securities; provided, however, that no such future amendment may materially impair the rights of the Holders hereunder without obtaining the requisite consent of the Holders, as set forth above. For purposes of this Section, Registrable Securities held by the Company or beneficially owned by any officer or employee of the Company shall be disregarded and deemed not to be outstanding.

b.

Counterparts. This Agreement may be executed in any number of counterparts, all of which shall constitute a single instrument.

c.

Notices, Etc. All notices and other communications required or permitted hereunder shall be in writing and may be sent initially by facsimile transmission and shall be mailed by registered or certified mail, postage prepaid, or otherwise delivered by hand or by messenger, addressed to the addresses set forth in the Settlement Agreement.  Each such notice or other communication shall for all purposes of this Agreement be treated as effective or having been given when delivered if delivered personally, or, if sent by first class, postage prepaid mail, at the earlier of its receipt or seventy-two (72) hours after the same has been deposited in a regularly maintained receptacle for the deposit of the United States mail, addressed and mailed as aforesaid.

d.

Severability. If any provision of this Agreement shall be held to be illegal, invalid or unenforceable, such illegality, invalidity or unenforceability shall attach only to such provision and shall not in any manner affect or render illegal, invalid or unenforceable any 

10

other provision of this Agreement, and this Agreement shall be carried out as if any such illegal, invalid or unenforceable provision were not contained herein.

e.

Governing Law. This Agreement shall be governed by and construed under the laws of the State of New York without regard to principles of conflict of law.

f.

Facsimile Signature.

This Agreement may be executed and delivered to the Investor containing a facsimile signature of an executive officer of the Company; which facsimile signature the Company acknowledges and agrees shall have the same validity and enforceability as those the same were a ribbon original signature

[the balance of this page intentionally left blank - signature page follows]

11

IN WITNESS WHEREOF, the parties hereto have caused this Registration Rights Agreement to be duly executed on the day and year first above written.

THE COMPANY:

VISCORP, INC.

(to be renamed Tianyin Pharmaceutical Co., Inc.)

By: _________________________________

Dr. Guoqing Jiang, CEO

12

Investor signature page to Registration Rights Agreement

IN WITNESS WHEREOF, the parties hereto have caused this Registration Rights Agreement to be duly executed on the day and year first above written.

Address of Investor:

Name of Investor:

By: ___________________________

_______________________

13

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