Document:

EXHIBIT 4.1

                           CERTIFICATE OF DESIGNATION

                                       OF

                        10.25% SERIES A PREFERRED SHARES

                                       OF

                          QUANTA CAPITAL HOLDINGS LTD.

Quanta Capital Holdings Ltd. (the "Company") HEREBY CERTIFIES that, pursuant to
resolutions of the pricing committee of the board of directors of the Company
passed on 14 December 2005, the Company created its 10.25% Series A Preferred
Shares, par value US$0.01 per share and that the designation, powers,
preferences and rights and the qualifications, limitations and restrictions
thereof are fixed as follows:

SECTION 1. DESIGNATION. There are hereby created from the authorised but
unissued undesignated preferred shares of the Company 10.25% Series A Preferred
Shares, par value US$0.01 per share (the "SERIES A PREFERRED Shares"). Each
Series A Preferred Share shall be identical in all respects to every other
Series A Preferred Share, except as to the date from which dividends thereon
shall accumulate, to the extent such date may differ as permitted by Section
4(a).

SECTION 2. NUMBER OF SHARES. The authorised number of Series A Preferred Shares
shall be 3,450,000. Any Series A Preferred Shares purchased or redeemed by the
Company may be reissued as Series A Preferred Shares or may be reclassified and
reissued by the Board in the same manner as any authorised but unissued
undesignated preferred shares. Any unissued Series A Preferred Shares may be
reclassified and issued by the Board in the same manner as any authorised but
unissued undesignated preferred shares.

SECTION 3. DEFINITIONS. Words and expressions defined in the Bye-Laws shall,
unless defined differently herein or unless the context otherwise requires, have
the same meanings when used herein. The following terms shall have the following
meanings when used herein:

(a)      "ACCEPTANCE NOTICE" has the meaning specified in Section 7(e).

(b)      "ADDITIONAL AMOUNTS" has the meaning specified in Section 6.

(c)      "ADDITIONAL DIRECTORS" has the meaning specified in Section 8(b).

(d)      "BUSINESS DAY" means a day that is a Monday, Tuesday, Wednesday,
         Thursday or Friday and is not a day on which banking institutions in
         New York City or Hamilton, Bermuda generally are authorised or
         obligated by law or executive order to close.

(e)      "BYE-LAWS" means the bye-laws of the Company, as they may be amended or
         replaced from time to time.

(f)      "CERTIFICATE OF DESIGNATION" means this certificate of designation
         relating to Series A Preferred Shares, as it may be amended from time
         to time.

(g)      "CHANGE IN TAX LAW" has the meaning specified in Section 7(b).

(h)      "CHANGE OF CONTROL" means any of:

         (1)      the sale, lease or transfer, in one or a series of related
                  transactions, of all or substantially all of the Company's
                  assets (determined on a consolidated basis) to any person or
                  group (as such term is used in section 13(d)(3) of the
                  Exchange Act);

         (2)      the adoption of a scheme of arrangement the consummation of
                  which would result in the liquidation or dissolution of the
                  Company;

         (3)      the acquisition, directly or indirectly, by any person or
                  group (as such term is used in section 13(d)(3) of the
                  Exchange Act), of beneficial ownership (as defined in rule
                  13d-3 under the Exchange Act) of more than 50% of the
                  aggregate voting power of the Company's Voting Shares;

         (4)      the consummation of any amalgamation, merger or consolidation
                  to which the Company is a party the result of which is that,
                  immediately after such transaction, the holders of all of the
                  Company's issued Voting Shares immediately prior to such
                  transaction hold 50% or less of the aggregate voting power of
                  the Voting Shares of the person surviving such transaction; or

         (5)      during any period of two consecutive years, individuals (other
                  than Additional Directors) who at the beginning of such period
                  comprised the Board (together with any new Directors whose
                  election by the Board or whose nomination for election by
                  shareholders was approved by a vote of a majority of the
                  Directors (other than Additional Directors) then still in
                  office who were either Directors at the beginning of such
                  period or whose election or nomination for election was
                  previously so approved) cease for any reason to constitute a
                  majority of the Board then in office (other than Additional
                  Directors).

(i)      "CHANGE OF CONTROL NOTICE" has the meaning specified in Section 7(e).

(j)      "CHANGE OF CONTROL REDEMPTION DATE" means the date specified in a
         Change of Control Notice that is not more than 30 calendar days after
         the date the Company mails the Change of Control Notice to holders of
         Series A Preferred Shares, provided that if the thirtieth calendar day
         after the date the Company mails the Change of Control Notice is not a
         Business Day, the Change of Control

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         Redemption Date specified in the Change of Control Notice shall not be
         later than the next succeeding Business Day.

(k)      "COMMISSION" means the Securities and Exchange Commission.

(l)      "DEPOSITARY" means The Depository Trust Company or any other depositary
         through whom Series A Preferred Shares or any depositary shares
         representing interests in the Series A Preferred Shares are issued in
         book-entry form.

(m)      "DIVIDEND PAYMENT DATE" has the meaning specified in Section 4(a).

(n)      "DIVIDEND PERIOD" has the meaning specified in Section 4(a).

(o)      "FIRST ISSUE DATE" means the first date on which Series A Preferred
         Shares are issued by the Company.

(p)      "JUNIOR STOCK" means the Common Shares and any other class or series of
         shares of the Company that ranks junior to the Series A Preferred Share
         either as to the payment of dividends or as to the distribution of
         assets on any liquidation, dissolution or winding-up of the Company.

(q)      "LIQUIDATION PREFERENCE" has the meaning specified in Section 5(a).

(r)      "PARITY LIQUIDATION PREFERENCES" has the meaning specified in Section
         5(b).

(s)      "PARITY STOCK" means any class or series of shares of the Company that
         ranks equally with the Series A Preferred Shares in the payment of
         dividends and in the distribution of assets on any liquidation,
         dissolution or winding-up of the Company.

(t)      "RECORD DATE" has the meaning specified in Section 4(a).

(u)      "REPRESENTATION RIGHT" has the meaning specified in Section 8(b).

(v)      "SERIES A PREFERRED SHARES" has the meaning specified in Section 1.

(w)      "SET ASIDE FOR PAYMENT" means the recording by the Company in its
         accounting ledgers of any accounting or bookkeeping entry which
         indicates, pursuant to a declaration of a dividend or other
         distribution by the Board, the allocation of the funds to be so paid on
         any class or series of the Company's shares, save that if any funds for
         any class or series of Junior Stock or any class or series of Parity
         Stock are placed in a separate account of the Company or delivered to a
         disbursing, paying or other similar agent, then "set aside for payment"
         means placing such funds in a separate account or delivering such funds
         to such disbursing, paying or other similar agent.

(x)      "$" means United States dollars (USD).

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(y)      "TAXES" means any taxes, fees duties, assessments or governmental
         charges of whatever nature.

(z)      "TAXING JURISDICTION" has the meaning specified in Section 6.

SECTION 4.  DIVIDENDS.

(c)      RATE AND PAYMENT DATES. Holders of Series A Preferred Shares shall be
         entitled to receive, only when, as and if declared by the Board, out of
         funds legally available for the payment of dividends under Bermuda law,
         a non-cumulative cash dividend (together with any Additional Amounts
         thereon) from the date of issue, quarterly in arrear, on the 15th day
         of March, June, September and December in each year (each a "DIVIDEND
         PAYMENT DATE"), commencing on 15th March 2006 without accumulation of
         undeclared dividends. If the Company issues additional Series A
         Preferred Shares after the First Issue Date, to the extent declared,
         dividends thereon may accumulate from the First Issue Date or from such
         other date as the Board may specify in relation to such issue at the
         time such additional Series A Preferred Shares are issued.

         A dividend period (a "DIVIDEND PERIOD") shall be the period from and
         including a Dividend Payment Date to but excluding the next Dividend
         Payment Date, except that the initial Dividend Period shall commence on
         and include the date of issue of the Series A Preferred Shares and
         shall end on 14th March 2006. Dividends payable on the Series A
         Preferred Shares shall be computed on the basis of a 360 day year
         consisting of twelve 30 day months. If any Dividend Payment Date is not
         a Business Day, then the date on which the dividend for the relevant
         Dividend Period shall be payable shall be the next succeeding Business
         Day, and no additional dividend shall accumulate on the amount so
         payable from such Dividend Payment Date to such next succeeding
         Business Day.

         To the extent declared, dividends shall accumulate with respect to each
         Dividend Period in an amount per share equal to 10.25 percent per annum
         of the Liquidation Preference (equivalent to $2.5625 per share per
         annum).

         A dividend payable on Series A Preferred Shares on any Dividend Payment
         Date shall be paid (together with any Additional Amounts thereon) to
         the holders of the Series A Preferred Shares as they appear in the
         Register of Members on last calendar day of the month preceding such
         Dividend Payment Date or on such other record date as may be fixed by
         the Board that is not more than 60 nor less than 10 days prior to such
         Dividend Payment Date (the "RECORD DATE").

         Dividends on the Series A Preferred Shares shall be non-cumulative and
         accordingly, if the Board does not declare a dividend for any Dividend
         Period, holders of the Series A Preferred Shares shall not be entitled
         to receive a dividend for such Dividend Period and such undeclared
         dividend shall not accumulate or be payable. The Company shall have no
         obligation to pay a dividend on Series A Preferred Shares for a
         Dividend Period after the Dividend Payment Date for such

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         period if the Board has not declared such dividend before the relevant
         Dividend Payment Date, whether or not dividends are declared on Series
         A Preferred Shares for any subsequent Dividend Period.

         Holders of Series A Preferred Shares shall not be entitled to any
         dividends or other distributions on their Series A Preferred Shares
         other than dividends payable in accordance with this Section 4.

(b)      PRIORITY OF DIVIDENDS. Unless the dividends (together with any
         Additional Amounts thereon) for the latest completed Dividend Period on
         all the issued Series A Preferred Shares and Parity Stock have been
         declared and paid or declared and a sum sufficient for the payment
         thereof has been set aside for payment: (1) no dividend or other
         distribution shall be paid or declared on the Common Shares or any
         other Junior Stock, other than a dividend or distribution payable
         solely in Common Shares or other Junior Stock; and (2) no Common Shares
         or other Junior Stock shall be purchased or redeemed for consideration
         by the Company, whether directly or indirectly, other than through the
         use of the proceeds of a substantially contemporaneous issue of Junior
         Stock or pursuant to the unilateral repurchase rights permitted by the
         Bye-Laws in effect on the First Issue Date or as a result of a
         reclassification of Junior Stock for or into other Junior Stock or the
         exchange or conversion of one share of Junior Stock for or into another
         share of Junior Stock.

         When dividends on the Series A Preferred Shares and dividends on any
         Parity Stock have not been paid (or the funds therefor have not been
         set aside for payment) in full on any Dividend Payment Date, all
         dividends which have been declared but remain unpaid shall be payable
         pro rata according to the amounts of dividends declared but unpaid on
         the Series A Preferred Shares and the amounts of dividends declared but
         unpaid on the Parity Stock on such Dividend Payment Date. If any Parity
         Stock has dividend payment dates different from the Dividend Payment
         Dates applicable to the Series A Preferred Shares, the date for
         ascertaining the amounts of dividends declared but unpaid on that
         Parity Stock shall be its dividend payment date falling within the
         Dividend Period to which the relevant Dividend Payment Date for the
         Series A Preferred Shares relates.

(c)      RESTRICTIONS ON PAYMENT OF DIVIDENDS. The Company may not declare or
         pay a dividend on the Series A Preferred Shares if there are reasonable
         grounds for believing that the Company is, or would after the payment
         be, unable to pay its liabilities as they become due, or if the
         realisable value of the Company's assets would thereby be less than the
         aggregate of its liabilities and its issued share capital and share
         premium accounts.

SECTION 5.  LIQUIDATION RIGHTS.

(a)      VOLUNTARY OR INVOLUNTARY LIQUIDATION. On any voluntary or involuntary
         liquidation, dissolution or winding-up of the Company, holders of the
         Series A Preferred Shares shall be entitled to receive out of the
         Company's assets available

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         for distribution to shareholders, a liquidation preference in the
         amount of $25 per share (a "LIQUIDATION PREFERENCE") plus declared but
         unpaid dividends and any Additional Amounts, before any distribution
         of assets is made to holders of Common Shares or other Junior Stock.
         Holders of Series A Preferred Shares shall not be entitled to any
         other amounts from the Company in respect of their Series A Preferred
         Shares after they have received their full Liquidation Preference plus
         declared but unpaid dividends and any Additional Amounts.

(b)      PARTIAL PAYMENT. If the Company's assets are not sufficient to pay in
         full all Liquidation Preferences on the Series A Preferred Shares and
         all liquidation preferences on any Parity Stock ("PARITY LIQUIDATION
         PREFERENCES"), the amounts paid to the holders of Series A Preferred
         Shares and the holders of such Parity Stock will be paid pro rata
         according to the respective aggregate Liquidation Preferences or Parity
         Liquidation Preferences of such holders.

(c)      RESIDUAL DISTRIBUTIONS. If all Liquidation Preferences, declared but
         unpaid dividends and Additional Amounts on Series A Preferred Shares
         and all Parity Liquidation Preferences, unpaid dividends and additional
         amounts (if any) on other Parity Stock have been paid in full to the
         holders thereof, the holders of the Company's other shares shall be
         entitled to receive all of the Company's remaining assets according to
         their respective rights and preferences.

(d)      MERGER, CONSOLIDATION AND SALE OF ASSETS NOT LIQUIDATION. For the
         purpose of this Section 5, a consolidation, amalgamation, merger,
         arrangement or reconstruction involving the Company or a sale or
         transfer of all or substantially all of the issued shares or property
         or business of the Company shall not be deemed to constitute a
         liquidation, dissolution or winding-up of the Company.

SECTION 6. TAXES, ETC. All dividends declared and payable on the Series A
Preferred Shares and all Liquidation Preferences shall be paid free and clear of
and without withholding or deduction at source for or on account of any present
or future Taxes imposed or levied by or on behalf of the government of Bermuda
or any other jurisdiction in which the Company is organised or any political
subdivision thereof (a "TAXING JURISDICTION") or any taxing authority thereof or
therein, unless such Taxes are required to be withheld or deducted by the laws
(or any regulations or rulings promulgated thereunder) of a taxing jurisdiction
or any taxing authority thereof or therein or by an official position regarding
the application, administration, interpretation or enforcement of any such laws,
regulations or rulings (including, without limitation, a ruling or determination
by a court of competent jurisdiction or by a taxing authority in the relevant
taxing jurisdiction).

If a withholding or deduction at source is required, the Company shall, save as
specified below, pay to holders of the Series A Preferred Shares such additional
amounts ("ADDITIONAL AMOUNTS") by way of dividend as may be necessary to ensure
that every net payment made to such holders, after the withholding or deduction
in question, shall be not less than the amount which would have been paid had
there been no such withholding or deduction.

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No Additional Amounts shall be paid by the Company for or on account of:

(a)      any Taxes that would not have been imposed but for the fact that a
         holder of Series A Preferred Shares was a resident, domiciliary or
         national of, or engaged in business or maintained a permanent
         establishment or was physically present in, the relevant taxing
         jurisdiction or otherwise had some connection with the relevant taxing
         jurisdiction other than by reason of the mere ownership of, or receipt
         of payment under, the Series A Preferred Shares or any Series A
         Preferred Shares presented for payment more than 30 days after the
         Relevant Date. The "Relevant Date" means, in respect of the payment of
         any dividend or Liquidation Preference, the date on which such dividend
         or Liquidation Preference first becomes due and payable, but if the
         full amount of the moneys payable has not been received by the relevant
         disbursing agent on or prior to such due date, it means the first date
         on which, the full amount of such moneys having been so received and
         being available for payment to holders of Series A Preferred Shares,
         notice to that effect has been duly given to such holders;

(b)      any estate, inheritance, gift, sale, transfer, personal property or
         similar Taxes or any Taxes that are payable otherwise than by
         withholding or deduction from the payment of the Liquidation
         Preference;

(c)      any Taxes that are imposed or withheld by reason of the failure by a
         holder of Series A Preferred Shares to comply with any reasonable
         request by the Company addressed to the holder within 90 days of such
         request (a) to provide information concerning the nationality,
         residence or identity of the holder or (b) to make any declaration or
         other similar claim or satisfy any information or reporting requirement
         which is required or imposed by statute, treaty, regulation or
         administrative practice of the relevant taxing jurisdiction as a
         precondition to exemption from all or part of such Taxes;

(d)      any withholding or deduction required to be made by the EU Savings Tax
         Directive (Council Directive 2003/48/EC) of 3rd June 2003 or any law
         implementing or complying with, or introduced in order to conform to,
         such directive; or

(e)      any combination of items (a), (b), (c) and (d).

In addition, no Additional Amounts shall be paid on any payment to a holder of
Series A Preferred Shares which is a trust, partnership, limited liability
company or other pass-through entity if such payment is required by the laws of
the relevant taxing jurisdiction or any taxing authority thereof or therein to
be included in the income for tax purposes of a beneficiary or settlor of such
trust, a partner in such partnership, a member of such limited liability company
or a beneficial owner of such other pass-through entity to the extent that such
beneficiary, settlor, partner, member or beneficial owner would not have been
entitled to such Additional Amounts had it been the holder of the Series A
Preferred Shares.

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SECTION 7.   REDEMPTION.

(a)      OPTIONAL REDEMPTION. The Series A Preferred Shares shall not be
         redeemable by the Company prior to 15th December 2010, other than as
         provided in Section 7(b). On and after 15th December 2010, the Series A
         Preferred Shares shall be redeemable at the Company's option, in whole
         or in part, on notice given as provided in Section 7(c), at the
         relevant redemption price per Series A Preferred Share, plus all
         declared but unpaid dividends and any Additional Amounts to the date of
         redemption. The relevant redemption price per Series A Preferred Share
         shall be determined by reference to the date on which the Series A
         Preferred Shares are redeemed in accordance with the following table:

         Redemption date falling within the period                       Redemption price per share
         -----------------------------------------                       --------------------------

         15th December 2010 to 14th December 2011                                      $28.00
         15th December 2011 to 14th December 2012                                      $27.40
         15th December 2012 to 14th December 2013                                      $26.80
         15th December 2013 to 14th December 2014                                      $26.20
         15th December 2014 to 14th December 2015                                      $25.60
         15th December 2015 and thereafter                                             $25.00

(b)      TAX REDEMPTION. If:

         (1)      there is a change in tax law which, in the opinion of counsel
                  experienced in such matters, would require the Company or any
                  successor, surviving or amalgamated company or corporation to
                  pay any Additional Amounts and the payment of those Additional
                  Amounts could not be avoided by the use of any reasonable
                  measures available to the Company or any such successor,
                  surviving or amalgamated company or corporation; or

         (2)      the entity formed by a consolidation, merger or amalgamation
                  involving the Company or to which the Company conveys,
                  transfers or leases substantially all of its properties and
                  assets is required to pay Additional Amounts in respect of any
                  Taxes imposed on any holder of Series A Preferred Shares as a
                  result of any change in tax law that occurred after the date
                  of the consolidation, merger, amalgamation, conveyance,
                  transfer or lease and the payment of those Additional Amounts
                  could not be avoided by the use of any reasonable measures
                  available to the Company or any such successor, surviving or
                  amalgamated company or corporation

         the Company shall have the option by prior written notice to the
         relevant holders, in such form and given in such manner as to be in
         accordance with Section 7(c), to redeem all of the issued Series A
         Preferred Shares for cash at a redemption price of $25 per share, plus
         all declared but unpaid dividends and any Additional Amounts to the
         date of redemption.

                                       8

         For the purpose of this Section 7(b) a "CHANGE IN TAX LAW" means (i) a
         change in or amendment to laws, regulations or rulings of any relevant
         taxing jurisdiction or authority, (ii) a change in the official
         application or interpretation of those laws, regulations or rulings, or
         (iii) any execution of or amendment to any treaty affecting Taxes to
         which any relevant taxing jurisdiction or authority is a party after
         the First Issue Date. For the purpose of this Section 7(b), relevant
         taxing jurisdictions or authorities are (x) Bermuda or any political
         subdivision or governmental authority of or in Bermuda with the power
         to tax, (y) any jurisdiction from or through which the Company or its
         disbursing agent is making payments on the Series A Preferred Shares or
         any political subdivision or governmental authority of or in that
         jurisdiction with the power to tax, or (z) any other jurisdiction in
         which the Company or a successor, surviving or amalgamated company or
         corporation is organised or generally subject to Taxes or any political
         subdivision or governmental authority of or in that jurisdiction with
         the power to tax.

(c)      NOTICE OF REDEMPTION. Notice of every redemption by the Company of
         Series A Preferred Shares shall be given by first class mail, to the
         holders of record of the Series A Preferred Shares to be redeemed,
         mailed not less than 30 nor more than 60 days prior to the date fixed
         for redemption. Notwithstanding the foregoing, if the Series A
         Preferred Shares or any depositary shares representing interests in the
         Series A Preferred Shares are issued in book-entry form through a
         Depositary, notice of redemption may be given to the holders of Series
         A Preferred Shares at such time and in any manner permitted by the
         Depositary. Each such notice given by the Company to a holder shall
         state: (1) the redemption date; (2) the number of Series A Preferred
         Shares to be redeemed and, if less than all of the Series A Preferred
         Shares held by such holder are to be redeemed, the number of such
         Series A Preferred Shares to be redeemed from such holder; (3) the
         redemption price; and (4) the place or places where certificates for
         such Series A Preferred Shares are to be surrendered for payment of the
         redemption price.

(d)      PARTIAL REDEMPTION. In case of any redemption by the Company of only
         part of the Series A Preferred Shares in issue at the time, the Series
         A Preferred Shares to be redeemed shall be selected either pro rata or
         in such other manner as the Company may determine to be fair and
         equitable between holders of Series A Preferred Shares.

(e)      REDEMPTION ON A CHANGE OF CONTROL. If a Change of Control occurs,
         holders of Series A Preferred Shares shall have the right, subject to
         funds being legally available for the purpose and to the Bye-Laws and
         memorandum of association of the Company, to require the Company to
         redeem any or all of their Series A Preferred Shares for cash at a
         redemption price of $25.25 per share plus all declared but unpaid
         dividends and any Additional Amounts to the Change of Control
         Redemption Date, unless such Change of Control Redemption Date falls
         after a Record Date and on or prior to the corresponding Dividend
         Payment Date, in which case the Company shall pay only the redemption
         price of $25.25 per share plus any Additional Amounts thereon on the
         Change of Control Redemption

                                       9

         Date and the Company shall pay the full amount of any accumulated but
         unpaid dividend and any Additional Amounts thereon on the relevant
         Dividend Payment Date to the holders of record of Series A Preferred
         Shares at the close of business on the corresponding Record Date.

         The Company shall, within 30 days after a Change of Control occurs,
         mail a notice (a "CHANGE OF CONTROL NOTICE") to all holders of Series A
         Preferred Shares at their addresses shown in the Register of Members
         (and to beneficial owners if required by applicable law) and cause the
         Depositary to send a Change of Control Notice to its participants that
         own Series A Preferred Shares. A Change of Control Notice shall state,
         among other things: (1) the event causing a Change of Control; (2) the
         date of such Change of Control; (3) the last date on which the
         redemption right triggered by such Change of Control may be exercised;
         (4) the redemption price; (5) the Change of Control Redemption Date;
         (6) the name and address of the paying agent; and (7) the procedures
         that holders must follow to exercise their right of redemption.

         To exercise the right of redemption under this Section 7(e), a holder
         of Series A preferred Shares shall deliver a written notice (an
         "ACCEPTANCE NOTICE") to the paying agent specified in the Change of
         Control Notice prior to the close of business on the Business Day
         immediately before the Change of Control Redemption Date stating: (1)
         if certificated Series A Preferred Shares have been issued, the
         certificate numbers of the Series A Preferred Shares to be redeemed, or
         if not, such information as may he required under applicable Depositary
         procedures; (2) the number of Series A Preferred Shares to be redeemed;
         and (3) that the Company is to redeem such Series A Preferred Shares
         pursuant to this Section 7(e) and subject to the Bye-Laws and the
         memorandum of association of the Company.

         A holder who has given an Acceptance Notice may withdraw it by a
         written notice of withdrawal delivered to the paying agent specified in
         the Change of Control Notice prior to the close of business on the
         Business Day immediately before the Change of Control Redemption Date
         stating: (1) the number of the withdrawn Series A Preferred Shares; (2)
         if certificated Series A Preferred Shares have been issued, the
         certificate numbers of the Series A Preferred Shares withdrawn, or if
         not, such information as may be required under applicable Depositary
         procedures; and (3) the number, if any, of Series A Preferred Shares
         that remain subject to redemption pursuant to the Acceptance Notice.

         A holder whose Series A Preferred Shares are to be redeemed must either
         effect book-entry transfer or deliver the certificate(s) for the Series
         A Preferred Shares to be redeemed, together with necessary
         endorsements, to the office of the paying agent specified in the Change
         of Control Notice to receive payment of the redemption price under this
         Section 7(e). Subject to the first paragraph of this Section 7(e),
         payment shall be made on the later of the Change of Control Redemption
         Date or the time of book-entry transfer or the delivery of the relevant
         share certificates.

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(f)      EFFECTIVENESS OF REDEMPTION. If a notice of redemption has been duly
         given by the Company under Sections 7(a) or (b) and all funds necessary
         for the redemption have been set aside for payment by the Company for
         the benefit of the holders of any Series A Preferred Shares to be
         redeemed, then, on and after the relevant redemption date: (1)
         dividends shall cease to accumulate on all Series A Preferred Shares to
         be redeemed, and (2) all rights attaching to such Series A Preferred
         Shares shall forthwith on such redemption date cease and determine,
         except only the right of the holders thereof to receive the amount
         payable on such redemption (whether or not book-entry transfer of the
         Series A Preferred Shares to be redeemed has been made or whether or
         not the relevant share certificates have been delivered to the paying
         agent).

         If an Acceptance Notice has been duly given by a holder of Series A
         Preferred Shares under Section 7(e) and not withdrawn and all funds
         necessary for the redemption have been set aside for payment by the
         Company for the benefit of the holders of any Series A Preferred Shares
         to be redeemed, then, immediately after the Change of Control
         Redemption Date: (1) dividends shall cease to accumulate on all Series
         A Preferred Shares to be redeemed, and (2) all rights attaching to such
         Series A Preferred Shares shall cease and determine, except only the
         right of the holders thereof to receive the amount payable on such
         redemption (whether or not book-entry transfer of the Series A
         Preferred Shares to be redeemed has been made or whether or not the
         relevant share certificates have been delivered to the paying agent).

(g)      NO SINKING FUND. The Series A Preferred Shares shall not be subject to
         any sinking fund, retirement fund or purchase fund or other similar
         provisions.

(h)      REDUCTION OF SHARE CAPITAL. Any redemption of Series A Preferred Shares
         under this Section 7 shall not be taken as reducing the amount of the
         Company's authorised share capital.

SECTION 8.  VOTING RIGHTS.

(a)      GENERAL. Except as provided below or by law, the holders of the Series
         A Preferred Shares shall not have any voting rights.

(b)      RIGHT TO ELECT TWO DIRECTORS ON NON-PAYMENT. Whenever dividends payable
         on the Series A Preferred Shares or any class or series of Parity Stock
         have not been declared by the Board and paid in an aggregate amount
         equal to six full quarterly dividends (whether or not consecutive), the
         holders of the Series A Preferred Shares, together with the holders of
         each such class or series of Parity Stock, shall have the right (the
         "REPRESENTATION RIGHT"), voting together as a single class regardless
         of class or series, to elect, by a vote of the holders of a majority of
         the issued Series A Preferred Shares and such Parity Stock, two
         Directors ("ADDITIONAL DIRECTORS") to the Board and to be represented
         by such Additional Directors, provided that the election of any such
         Directors shall not cause the Company to violate the corporate
         governance requirements of The

                                       11

         Nasdaq Stock Market, Inc. (or any other exchange or quotation system
         on which the Company's securities may be listed or quoted) that listed
         companies must have a majority of independent directors.

         Whenever dividends on the Series A Preferred Shares and all Parity
         Stock in issue have been paid in full or sufficient funds have been set
         aside for payment for at least four Dividend Periods, whether or not
         consecutive, the Representation Right shall cease (but subject always
         to the same provision for the vesting of such right in the case of any
         future arrears in an aggregate amount equal to six full quarterly
         dividends whether or not consecutive), and the terms of office of the
         Additional Directors elected to the Board shall terminate. In
         determining whether dividends have been paid for four Dividend Periods
         in which the Representation Right has vested, the Company may take
         account of any dividend it elects to pay for a Dividend Period after
         the Dividend Payment Date for that Dividend Period has passed.

         At any time when the Representation Right has vested in the holders of
         the Series A Preferred Shares and any Parity Stock as described in the
         first paragraph of this Section 8(b), such right may be exercised
         initially either at a special meeting of the holders of the Series A
         Preferred Shares and such Parity Stock or at any annual general meeting
         of the Company, and thereafter at annual general meetings of the
         Company subject to the right of the holders of Series A Preferred
         Shares and such Parity Stock to fill a vacancy in accordance with the
         provisions below. At any time when the Representation Right has vested,
         the Company's chairman or president shall, on the written request of
         the holders of record of not less than 10% of the Series A Preferred
         Shares and such Parity Stock (taken together) addressed to the
         Secretary, call a special general meeting of the holders of the Series
         A Preferred Shares and such Parity Stock for the purpose of electing
         Additional Directors. Such meeting shall be held on the earliest
         practicable date at such place as may be designated pursuant to the
         Bye-Laws (or if there is no such designation, at the Company's
         registered office in Bermuda). Notwithstanding the foregoing, no such
         special meeting shall be called during the period within 90 days
         immediately preceding the date fixed for the next annual general
         meeting of the Company.

         At any annual or special general meeting at which the holders of Series
         A Preferred Shares and any Parity Stock have the Representation Right,
         the presence, in person or by proxy, of the holders of more than 50% of
         the Series A Preferred Shares and such Parity Stock (taken together)
         shall constitute a quorum for the election of any Additional Director.
         At any such meeting or adjournment thereof the absence of such a quorum
         shall not prevent the election of Directors other than Additional
         Directors, and the absence of a quorum for the election of other
         Directors shall not prevent the election of Additional Directors.

         During any period in which the Representation Right subsists, any
         vacancies in the Board shall be filled by the Directors by vote of a
         majority of the Board pursuant to the Bye-Laws. During such period, the
         Additional Directors shall

                                       12

         continue in office (1) until the next succeeding annual general
         meeting or until their successors, if any, are elected by such holders
         or (2) unless required by applicable law, rule or regulation to
         continue in office for a longer period, until termination of the
         Representation Right, if earlier. Immediately upon any termination of
         the Representation Right, the terms of office of the Additional
         Directors then in office shall terminate.

         Following the initial election of Additional Directors and so long as
         such Representation Right continues, any vacancy in the office of
         Additional Director shall be filled by the written consent of the
         remaining Additional Director or, if none remains in office, by a vote
         of the holders of a majority of the Series A Preferred Shares and each
         such class or series of Parity Stock having the Representation Right,
         voting together as a single class regardless of class or series at a
         special general meeting of the Company, called as provided above for an
         initial election of Additional Directors after the Series A Preferred
         Shares and each such class or series of Parity Stock have the
         Representation Right as described above (unless such request is
         received less than 90 days before the date fixed for the next annual or
         special meeting of the Company, in which event such election shall be
         held at such next annual or special general meeting of the Company.

         During any period in which the Representation Right subsists, any
         Additional Director may be removed without cause by a vote of the
         holders of a majority of the Series A Preferred Shares and each such
         class or series of Parity Stock having the Representation Right, voting
         together as a single class regardless of class or series at a special
         general meeting of the Company, called as provided above for an initial
         election of Additional Directors after the Series A Preferred Shares
         and each such class or series of Parity Stock have the Representation
         Right as described above (unless such request is received less than 90
         days before the date fixed for the next annual or special meeting of
         the Company, in which event such election shall be held at such next
         annual or special general meeting of the Company.

(c)      VOTING RIGHTS. So long as any Series A Preferred Shares are in issue,
         in addition to any other vote or consent of shareholders required by
         law or by the Bye-Laws, the written consent of the holders of at least
         75% of the Series A Preferred Shares in issue at the time or the
         sanction of a resolution passed by a majority of the votes cast at a
         separate meeting of the holders of the Series A Preferred Shares shall
         be required in order to vary the rights attaching to the Series A
         Preferred Shares or to adopt an amalgamation that varies the rights
         attaching to the Series A Preferred Shares. Notwithstanding the
         foregoing, the Board may (a) cure any ambiguity or cure, correct or
         supplement any provision contained in this Certificate of Designation
         that may be defective or inconsistent, or (b) make any provision with
         respect to matters or questions arising with respect to the Series A
         Preferred Shares which is not inconsistent with the provisions of this
         Certificate of Designation without the approval of the holders of
         Series A Preferred Shares

                                       13

         provided that any such action does not vary the special rights,
         preferences, privileges and voting powers of the Series A Preferred
         Shares taken as a whole.

         For the purpose of this Section 8(c), the creation or issue of any
         Junior Stock or Parity Stock or any shares of any class or series
         ranking senior to the Series A Preferred Shares as to the payment of
         dividends or as to the distribution of assets on any liquidation,
         dissolution or winding-up of the Company or the purchase or redemption
         of any of the Company's shares shall not be deemed to vary the rights
         of the holders of Series A Preferred Shares.

         The holders of the Series A Preferred Shares shall not be entitled to
         vote on any sale of all or substantially all of the assets of the
         Company.

         For purpose of any vote by the holders of the Series A Preferred Shares
         pursuant to the foregoing provisions of this Section 8, each Series A
         Preferred Share shall confer on its holder one (1) vote per share,
         except that when any class or series of Parity Stock has the right to
         vote with the Series A Preferred Shares as a single class on any
         matter, then the Series A Preferred Shares and such class or series of
         Parity Stock shall have one (1) vote per $25 of liquidation preference.

         The foregoing voting provisions of this Section 8 shall not apply if,
         at or prior to the time when the act in respect of which such vote
         would otherwise be required is effected, all Series A Preferred Shares
         in issue have been redeemed or called for redemption on proper notice
         and sufficient funds have been set aside for payment by the Company for
         the benefit of the holders of Series A Preferred Shares to effect such
         redemption as set out in Section 7.

SECTION 9.  RESTRICTIONS ON VOTING AND TRANSFERS.

(a)      If and for so long as the number of issued Controlled Shares of any
         holder of Series A Preferred Shares would constitute more than nine and
         one half percent (9.5%) of the total combined voting rights attaching
         to the issued shares of the Company (calculated after giving effect to
         any prior reduction in voting rights attaching to shares of other
         Persons as provided in this Section 9 or in the Bye-Laws), each such
         issued Controlled Share, regardless of the identity of the registered
         holder thereof, shall confer only a fraction of a vote as determined by
         the following formula (the "FORMULA"):

         (T  -  C)  /  (9.525  x  C)

         Where:     "T" is the aggregate number of votes conferred by all the
                    issued shares in the Company immediately prior to that
                    application of the Formula with respect to such issued
                    Controlled Shares, adjusted to take into account each
                    reduction in such aggregate number of votes that results
                    from a prior reduction in the exercisable votes conferred by
                    any issued Controlled Shares pursuant to this Section 9 and
                    the Bye-laws as at the same date; and

                                       14

                    "C" is the number of issued Controlled Shares attributable
                    to such holder.

(b)      The Directors may, by notice in writing, require any holder of Series A
         Preferred Shares to provide, within not less than ten Business Days,
         complete and accurate information to the registered office or such
         other place as the Directors may designate in respect of any or all of
         the following matters:

         (1)      the number of shares in the Company in which such holder is
                  legally or beneficially interested;

         (2)      the Persons who are beneficially interested in shares in the
                  Company in respect of which such holder is the registered
                  holder;

         (3)      the relationship, association or affiliation of such holder
                  with any other Member or Person whether by means of common
                  control or ownership or otherwise; or

         (4)      any other facts or matters which the Directors may consider
                  relevant to the determination of the number of Controlled
                  Shares attributable to any Person.

(c)      If any holder of Series A Preferred Shares does not respond to any
         notice given pursuant to Section 9(b) above within the time specified
         therein or the Directors shall have reason to believe that any
         information provided in relation thereto is incomplete or inaccurate,
         the Directors may determine that the votes attaching to any shares
         registered in the name of such holder shall be disregarded for all
         purposes until such time as a response (or additional response) to such
         notice reasonably satisfactory to the Directors has been received as
         specified therein.

(d)      The Formula shall be applied successively as many times as may be
         necessary to ensure that no Person shall be a 9.5% Shareholder at any
         time. For the purposes of determining the votes exercisable by holders
         of Series A preferred Shares as at any date, the Formula shall be
         applied to the shares of each such holder in declining order based on
         the respective numbers of total Controlled Shares attributable to each
         such holder. Thus, the Formula shall be applied first to the votes of
         shares held by the holder to whom the largest number of total
         Controlled Shares is attributable and thereafter sequentially with
         respect to the holder with the next largest number of total Controlled
         Shares. In each case, calculations shall be made on the basis of the
         aggregate number of votes conferred by the issued shares in the Company
         as of such date, as reduced by the application of the Formula to any
         issued shares of any Member with a larger number of total Controlled
         Shares as of such date.

(e)      Notwithstanding the provisions of Sections 9(a) and (b) above, having
         applied the provisions thereof as best as they consider reasonably
         practicable, the Directors may make such final adjustments to the
         aggregate number of votes attaching to the shares of any Member that
         they consider fair and reasonable in all the circumstances to ensure
         that no Person shall be a 9.5% Shareholder at any time.

                                       15

(f)      Sections 9(a) to (e) (inclusive) shall only be effective for and at
         such times when the Company shall have eleven (11) or more Members.

(g)      The Directors shall decline to register a transfer of Series A
         Preferred Shares if the Directors have reason to believe that the
         effect of such transfer would be that any Person would become or
         continue to be a 9.5% Shareholder or a United States 25% Shareholder.

(h)      The Directors may, in their absolute and unfettered discretion, decline
         to register the transfer of any Series A Preferred Shares if the
         Directors have reason to believe (1) that such transfer may expose the
         Company, any subsidiary thereof, any Member or any Person ceding
         insurance to the Company or any such subsidiary to adverse tax or
         regulatory treatment in any jurisdiction or (ii) that registration of
         such transfer under the Securities Act or under any blue sky or other
         U.S. state securities laws or under the laws of any other jurisdiction
         is required and such registration has not been duly effected (PROVIDED,
         HOWEVER, that in this case (ii) the Directors shall be entitled to
         request and rely on an opinion of counsel to the transferor or the
         transferee, in form and substance satisfactory to the Directors, that
         no such approval or consent is required and no such violation would
         occur, and the Directors shall not be obligated to register any
         transfer absent the receipt of such an opinion).

SECTION 10. NO PRE-EMPTION RIGHTS. No Series A Preferred Share shall have any
right of pre-emption whatsoever in relation to any shares or other securities of
the Company, or any warrants, rights or options issued or granted in respect
thereof, regardless of how such shares or securities, or such warrants, rights
or options, may be designated, issued or granted.

SECTION 11. CONVERSION. The Series A Preferred Shares shall not be convertible
into or exchangeable for any other shares or other securities or property of the
Company.

SECTION 12. OTHER RIGHTS. The Series A Preferred Shares shall not have any
voting powers, preferences or relative, participating, optional or other special
rights, or qualifications, limitations or restrictions other than as set out in
this Certificate of Designation, the memorandum of association of the Company,
the Bye-Laws or applicable law.

                                       16EXHIBIT 4.2

10.25% SERIES A PREFERRED SHARES                10.25% SERIES A PREFERRED SHARES

     QNTAP

                                  [QUANTA LOGO]

                          QUANTA CAPITAL HOLDINGS LTD.
              INCORPORATED IN BERMUDA UNDER THE COMPANIES ACT, 1981

                                                               CUSIP G7313F 11 4

THIS IS TO CERTIFY THAT

is the registered holder of

    FULLY PAID 10.25% SERIES A PREFERRED SHARES OF PAR VALUE US$0.01 EACH OF
                          QUANTA CAPITAL HOLDINGS LTD.

transferable on the books of the Company by the holder hereof in person or by
duly authorized attorney upon surrender of this certificate properly endorsed.
This certificate and the shares represented hereby are issued and shall be held
subject to all of the provisions of the Memorandum of Association, Bye-Laws and
Certificate of Designation of the Company and shall be transferable in
accordance therewith. This certificate is not valid unless countersigned and
registered by the Transfer Agent and Registrar.

     WITNESS the facsimile seal of the Company and the facsimile signatures of
its duly authorized officers.

     Dated

COUNTERSIGNED AND REGISTERED:
     THE BANK OF NEW YORK
     TRANSFER AGENT                              INTERIM CHIEF EXECUTIVE OFFICER
     AND REGISTRAR

     BY

          AUTHORIZED SIGNATORY                           CHIEF FINANCIAL OFFICER

THE VOTING RIGHTS EXERCISABLE BY SHAREHOLDERS, DIRECTLY OR INDIRECTLY OR THROUGH
ATTRIBUTION, MAY BE LIMITED TO NOT MORE THAN 9.5% OF THE VOTING POWER CONFERRED
BY OUR SHARES, PURSUANT TO A FORMULA CONTAINED IN THE COMPANY'S BYE-LAWS AND
CERTIFICATE OF DESIGNATION. THE BOARD OF DIRECTORS OF THE COMPANY, BY VIRTUE OF
POWERS CONFERRED BY THE BYE-LAWS AND CERTIFICATE OF DESIGNATION, ALSO HAS THE
DISCRETION TO MAKE SUCH ADJUSTMENTS TO THE AGGREGATE NUMBER OF VOTES ATTACHING
TO THE SHARES OF ANY SHAREHOLDER THAT IT CONSIDERS FAIR AND REASONABLE IN ALL
CIRCUMSTANCES TO ENSURE THAT NO PERSON WILL HOLD MORE THAN 9.5% OF THE COMPANY'S
VOTING RIGHTS AT ANY TIME.

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

     TEN COM -- as tenants in common              UNIF GIFT MIN ACT -- ____________ Custodian _________
                                                                           (Cust)              (Minor)
     TEN ENT -- as tenants by the entireties         under Uniform Gifts to Minors

     JT TEN  -- as joint tenants with right of       Act _____________________________________
                survivorship and not as tenants                     (State)
                in common

     Additional abbreviations may also be used though not in the above list.

          For Value Received, ____________________________________________
hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
     IDENTIFYING NUMBER OF ASSIGNEE

__________________________________________

__________________________________________

     ___________________________________________________________________________
     (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF
     ASSIGNEE)

     ___________________________________________________________________________

     ___________________________________________________________________________

     ____________________________________________________________________ Shares
     represented by the within Certificate, and do hereby irrevocably constitute
     and appoint

     __________________________________________________________________ Attorney
     to transfer the said shares on the books of the within named Company with
     full power of substitution in the premises.

Dated _____________________

                              --------------------------------------------------
                                      THE SIGNATURE TO THIS ASSIGNMENT MUST
                                      CORRESPOND WITH THE NAME AS WRITTEN UPON
                                      THE FACE OF THE CERTIFICATE IN EVERY
                              NOTICE: PARTICULAR, WITHOUT ALTERATION OR
                                      ENLARGEMENT OR ANY CHANGE WHATEVER.

Signature(s) Guaranteed:

--------------------------------------------------
THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE
GUARANTOR INSTITUTION (BANKS, STOCKBROKERS,
SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS
WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE
MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE
17Ad-15.

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