Exhibit 10.13 - Stock Purchase and Exchange Agreement

STOCK PURCHASE AND EXCHANGE AGREEMENT

This Stock Purchase and Exchange Agreement (this "Agreement")
is made and effective as of May 31, 2012 (the "Effective Date"),
between Green Ecology Ltd., a foreign corporation with a mailing
address of P.O. BOX 957, Offshore Incorporations Centre, Road
Town, Tortola, British Virgin Islands, and its shareholders,
officers, affiliates and assigns (collectively referred to herein
as "Green Ecology"), and PyroTec, Inc., a Delaware corporation
with a resident agent located at 113 Barksdale Professional
Center in Newark, Delaware 19711-3258 and doing business at 125-E
Wappoo Creek, Suite 202A in Charleston, South Carolina 29412 ,
and its affiliates and assigns ("PyroTec"), collectively referred
to as the "Parties."

WITNESSETH

WHEREAS, the Parties have determined that the transaction
contemplated by this Agreement would be advantageous and
beneficial to their respective companies and shareholders.

WHEREAS, the parties hereto desire to consummate the
transactions contemplated herein, pursuant to which Green Ecology
will convey to PyroTec title to twenty-five percent (25%) of
Green Ecology shares of authorized stock of Green Ecology, which
shall not be diluted upon additional authorization or upon any
private or public offering, i.e. PyroTec shall retain at all
times until disposition of title to such shares its twenty-five
percent (25%) interest, under the following agreed upon
schedule:

(a) 10% of Green Ecology shares pursuant to Section 2.2. of
this Agreement;

(b) 5% of Green Ecology shares upon PyroTec's purchase of
three (3) units from Green Ecology;

(c) 5% of Green Ecology shares upon PyroTec's purchase of
three (3) additional units from Green Ecology; and

(d) 5% of Green Ecology shares upon PyroTec's purchase of
three (3) additional units from Green Ecology.

Unless otherwise stated, the Green Ecology stock being
conveyed is collectively referred to as the "Green Ecology
Shares."

WHEREAS, and in consideration of the assumption of the Green
Ecology Shares, PyroTec will convey title to Green Ecology,
305,945 shares of common stock under the following agreed upon
schedule:

(a) 122,378 shares of PyroTec restricted common stock pursuant
to Section 2.2 of this Agreement; (b) 183,567 shares of PyroTec
registered common stock from its Employee Option Pool upon Green
Ecology conveyance of title to fifteen percent (15%) of the Green
Ecology Shares, as agreed to above.

Unless otherwise stated, the PyroTec stock being conveyed is
collectively referred to as the "PyroTec Shares."

WHEREAS, the parties hereto agree that the valuation of the
purchase of the Green Ecology Shares and PyroTec Shares are based
upon projected valuation of the PyroTec Shares and the projected
earnings of Green Ecology and its assigns and affiliates.

WHEREAS, for United States federal income tax purposes, the
transactions contemplated hereby are intended to qualify as a
tax-free reorganization under Section 368 of the Internal Revenue
Code of 1986, as amended (together with all rules and regulations
issued thereunder (the "Code")) and this Agreement is intended to
be adopted as a plan of reorganization for purposes of Section
368 of the Code.

WHEREAS, the Recitals stated herein are not mere statements,
but representations and warranties of the parties, and material
terms in which each party has relied upon in executing this
Agreement.

NOW, THEREFORE, in consideration of the premises and the
representations, warranties and agreements herein contained, the
parties hereto agree as follows:

ARTICLE I

DEFINITIONS

SECTION 1.1. DEFINITIONS. As used herein, the following terms
shall have the following meanings:

(a) "Act" means the Securities Act of 1933, as amended, and
the rules and regulations issued in respect thereto.

(b) "Encumbrance" means any security interest, mortgage,
pledge, hypothecation, assignment, deposit arrangement,
encumbrance, lien (statutory or otherwise), charge against or
interest in property to secure payment of a debt or performance
of an obligation or other priority or preferential arrangement of
any kind or nature whatsoever.

(c) "Law" means any law, statute, regulation, rule, ordinance,
requirement or other binding action or requirement of any
governmental, regulatory or administrative body, agency or
authority or any court of judicial authority.

(d) "Order" means any decree, order, judgment, writ, award,
injunction, stipulation or consent of or by any Federal, state or
local government or any court, administrative agency or
commission or other governmental authority or agency, domestic or
foreign.

(e) "Person" means any individual, corporation, general or
limited partnership, joint venture, association, limited
liability company, joint stock company, trust, business, bank,
trust company, estate (including any beneficiaries thereof),
unincorporated entity, cooperative, association, government
branch, agency or political subdivision thereof or organization
of any kind.

(f) "Transaction Documents" means any ancillary contracts,
agreements or other documents that are to be entered into in
connection with the transactions contemplated hereby.

ARTICLE II

EXCHANGE OF STOCK

SECTION 2.1. Subject to the terms and conditions of this
Agreement, at the Closing, Green Ecology agrees to transfer to
PyroTec the Green Ecology Shares, and in turn, PyroTec agrees to
transfer to Green Ecology the PyroTec Shares.

SECTION 2.2. THE CLOSING.

(a) Subject to the terms and conditions of this Agreement, the
closing of the transactions contemplated by this Agreement (the
"Closing") shall take place as promptly as possible but no later
than the fifth (5th) business day following the day the last of
the conditions set forth in Article V shall have been fulfilled
or waived (other than those that this Agreement contemplates will
be satisfied at or immediately prior to the Closing), or at such
other time as shall be mutually agreed upon by the Parties (the
"Closing Date").

(b) Subject to the conditions set forth in this Agreement, the
parties agree to consummate the following transactions at the
Closing:

(i) Green Ecology shall assign and transfer to PyroTec, by
physically delivering to PyroTec, one (1) or more stock
certificates representing 10% of the Green Ecology Shares being
sold, duly endorsed or accompanied by duly executed stock powers
(with a medallion guaranty, if required by PyroTec's transfer
agent) sufficient to validly transfer the Green Ecology Shares to
PyroTec or its nominee; and

(ii) PyroTec shall assign and transfer to Green Ecology, by
physically delivering to Green Ecology, one (1) or more stock
certificates representing 122,378 shares of the PyroTec
restricted common stock being sold, duly endorsed or accompanied
by duly executed stock powers (with a medallion guaranty, if
required by Green Ecology's transfer agent) sufficient to validly
transfer the PyroTec Shares to Green Ecology or its nominee.

SECTION 2.3. THE ESCROW AGREEMENT.



(a) The Parties agree that the balance of the common stock being
conveyed, that is, the fifteen percent (15%) of Green Ecology
Shares and the 183,567 shares of PyroTec registered common stock
from its Employee Option Pool shall be held in each respective
party's escrow account, unencumbered and restricted from
transfer.
(b) The Parties agree that upon full satisfaction of each
condition precedent agreed upon in the Recitals, above, the
obligor shall release the escrowed stock to the obligee within
five (5) days of satisfaction of the condition precedent.

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF GREEN ECOLOGY

Green Ecology represents and warrants to PyroTec that the
statements contained in this Article III are true and correct as
of the date of this Agreement and will be true and correct as of
the Closing as though made as of the Closing, except to the
extent such representations and warranties are specifically made
as of a particular date (in which case such representations and
warranties will be true and correct as of such date).

SECTION 3.1. POWER AND AUTHORITY. Green Ecology is a
corporation duly organized, validly existing and in good standing
under the laws of its jurisdiction of incorporation. Green
Ecology has all requisite capacity, power and authority to
execute, deliver and perform this Agreement. No other corporate
action on the part of Green Ecology is necessary to authorize the
execution and delivery by Green Ecology of this Agreement or the
consummation by it of the Contemplated Transactions (as defined
below). This Agreement has been duly executed and delivered and,
upon execution by PyroTec, will constitute a valid and legally
binding obligation of Green Ecology, enforceable against Green
Ecology in accordance with its terms, except (a) as limited by
applicable bankruptcy, insolvency, reorganization, moratorium,
and other laws of general application affecting enforcement of
creditors' rights generally and (b) as limited by laws
relating to the availability of specific performance, injunctive
relief, or other equitable remedies.

SECTION 3.2. OWNERSHIP; TRANSFERABILITY. Green Ecology is the
legal and beneficial owner of the Green Ecology Shares, free and
clear of any Encumbrance or restriction on transfer (and shall
remain free and clear until the Closing), other than restrictions
under the Act, or restrictions reflected in a legend on the
certificates representing the Green Ecology Shares.

SECTION 3.3. CONSENTS AND APPROVALS. Neither the execution,
delivery and performance of this Agreement by Green Ecology, nor
the consummation by Green Ecology of any transaction related
hereto, including the transfer, sale and delivery of the Green
Ecology Shares will require any consent, approval, license, Order
or authorization of, filing, registration, declaration or taking
of any other action with, or notice to, any Person, other than
such consents, approvals, filings or actions as may be required
under the Federal securities laws which have or will be made, or
the securities laws of the jurisdiction of Green Ecology.

SECTION 3.4. NO CONFLICTS. The execution and delivery by Green
Ecology of this Agreement and the Transaction Documents to which
it is or will become a party do not, and the consummation of the
transactions contemplated by this Agreement and the Transaction
Documents to which it is or will become a party (the
"Contemplated Transactions") shall not, assuming the consents,
approvals, filings or actions described in Section 3.3 are made
or obtained, as the case may be, (a) contravene, conflict with,
or result in any violation or breach of any provision of the
certificate of incorporation or by-laws of Green Ecology, (b)
result in any violation or breach of, or constitute (with or
without notice or lapse of time, or both) a default (or give rise
to a right of termination, cancellation or acceleration of any
obligation or loss of any benefit) under any of the terms,
conditions or provisions of any note, bond, mortgage, indenture,
lease, contract or other agreement, instrument or obligation to
which Green Ecology is a party or by which it or any of its
properties or assets may be bound, or (c) conflict or violate any
permit, concession, franchise, license, judgment, Order, decree,
statute, law, ordinance, rule or regulation of any government,
governmental instrumentality or court, domestic or foreign,
applicable to Green Ecology or any of its properties or assets,
except in the case of (b) and (c) for any such conflicts,
violations, defaults, terminations, cancellations or
accelerations which would not, individually or in the aggregate,
materially and adversely affect the Green Ecology Shares being
conveyed by Green Ecology to PyroTec.

SECTION 3.5. PURCHASE ENTIRELY FOR OWN ACCOUNT.

(a) The PyroTec Shares to be received by Green Ecology will be
acquired for investment for Green Ecology's own account, and not
with a view to the resale or distribution of any part
thereof.

(b) Green Ecology has no present intention of selling,
granting any participation in, or otherwise distributing the
PyroTec Shares, except, in the case of (a) and (b) of this
Section 3.5, as permitted by the Act.



(c) Green Ecology is an "accredited investor" under Rule 501(a)
promulgated under the Act.
SECTION 3.6. CLASSIFICATION OF PYROTEC SHARES.

(a) Green Ecology understands that the 122,378 shares of
PyroTec Shares being conveyed at Closing shall be characterized
as "restricted securities" under the Federal securities laws and
that under such laws and applicable regulations such securities
may be resold without registration under the Act only in certain
limited circumstances.

(b) The Parties agree that the 183,567 shares of PyroTec
Shares subject to the release condition herein shall be issued
from PyroTec's Employee Option Pool and shall be considered
"registered securities," unless otherwise required to be
otherwise by the United States Securities and Exchange
Commission.

SECTION 3.7. LEGENDS. It is understood that the certificate(s)
evidencing the 122,378 PyroTec Shares shall bear a legend
substantially in the form below:

THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933 OR WITH ANY STATE
SECURITIES COMMISSION, AND MAY NOT BE TRANSFERRED OR DISPOSED OF
BY THE HOLDER IN THE ABSENCE OF A REGISTRATION STATEMENT WHICH IS
EFFECTIVE UNDER THE SECURITIES ACT OF 1933 AND APPLICABLE STATE
LAWS AND RULES OR UNLESS SUCH TRANSFER MAY BE EFFECTED WITHOUT
VIOLATION OF THE SECURITIES ACT OF 1933 AND OTHER APPLICABLE
STATE LAWS AND RULES.

SECTION 3.8. BROKERS, ETC. Green Ecology is not obligated to
pay any fee or commission to any broker, finder or other similar
Person in connection with the transactions contemplated by this
Agreement (other than any fees or commissions that are solely for
the account of Green Ecology).

SECTION 3.9. WAIVER AND RELEASE. Green Ecology agrees to waive
and release any right to the PyroTec Shares, as such right has
been assigned for valuable consideration to Green Ecology.

ARTICLE IV

REPRESENTATIONS AND WARRANTIES OF PYROTEC

PyroTec represents and warrants to Green Ecology that the
statements contained in this Article IV are true and correct as
of the date of this Agreement and will be true and correct as of
the Closing as though made as of the Closing, except to the
extent such representations and warranties are specifically made
as of a particular date (in which case such representations and
warranties will be true and correct as of such date).

SECTION 4.1. POWER AND AUTHORITY. PyroTec is a corporation
duly organized, validly existing and in good standing under the
laws of the State of Delaware. PyroTec has all requisite
capacity, power and authority to execute, deliver and perform
this Agreement. No other corporate action on the part of PyroTec
is necessary to authorize the execution and delivery by PyroTec
of this Agreement or the consummation by it of the Contemplated
Transactions (as defined below). This Agreement has been duly
executed and delivered and, upon execution by Green Ecology, will
constitute a valid and legally binding obligation of PyroTec,
enforceable against PyroTec in accordance with its terms, except
(a) as limited by applicable bankruptcy, insolvency,
reorganization, moratorium, and other laws of general application
affecting enforcement of creditors' rights generally and (b)
as limited by laws relating to the availability of specific
performance, injunctive relief, or other equitable remedies.

SECTION 4.2. OWNERSHIP; TRANSFERABILITY. PyroTec is the legal
and beneficial owner of the PyroTec Shares, free and clear of any
Encumbrance or restriction on transfer (and shall remain free and
clear until the Closing), other than restrictions under the Act,
or restrictions reflected in a legend on the certificates
representing the PyroTec Shares

SECTION 4.3. CONSENTS AND APPROVALS. Neither the execution,
delivery and performance of this Agreement by PyroTec, nor the
consummation by PyroTec of any transaction related hereto,
including the transfer, sale and delivery of the PyroTec Shares
will require any consent, approval, license, Order or
authorization of, filing, registration, declaration or taking of
any other action with, or notice to, any Person, other than such
consents, approvals, filings or actions as may be required under
the Federal securities laws which have or will be made, or the
securities laws of the jurisdiction of PyroTec.

SECTION 4.4. NO CONFLICTS. The execution and delivery by
PyroTec of this Agreement and the Transaction Documents to which
it is or will become a party do not, and the consummation of the
transactions contemplated by this Agreement and the Transaction
Documents to which it is or will become a party (the
"Contemplated Transactions") shall not, assuming the consents,
approvals, filings or actions described in Section 4.3 are made
or obtained, as the case may be, (a) contravene, conflict with,
or result in any violation or breach of any provision of the
certificate of incorporation or by-laws of PyroTec, (b) result in
any violation or breach of, or constitute (with or without notice
or lapse of time, or both) a default (or give rise to a right of
termination, cancellation or acceleration of any obligation or
loss of any benefit) under any of the terms, conditions or
provisions of any note, bond, mortgage, indenture, lease,
contract or other agreement, instrument or obligation to which
PyroTec is a party or by which it or any of its properties or
assets may be bound, or (c) conflict or violate any permit,
concession, franchise, license, judgment, Order, decree, statute,
law, ordinance, rule or regulation of any government,
governmental instrumentality or court, domestic or foreign,
applicable to PyroTec or any of its properties or assets, except
in the case of (b) and (c) for any such conflicts, violations,
defaults, terminations, cancellations or accelerations which
would not, individually or in the aggregate, materially and
adversely affect the PyroTec Shares being conveyed by PyroTec to
Green Ecology.

SECTION 4.5. PURCHASE ENTIRELY FOR OWN ACCOUNT.

(a) The Green Ecology Shares to be received by PyroTec will be
acquired for investment for PyroTec's own account, and not with a
view to the resale or distribution of any part thereof.

(b) PyroTec has no present intention of selling, granting any
participation in, or otherwise distributing the Green Ecology
Shares, except, in the case of (a) and (b) of this Section 3.5,
as permitted by the Act.

(c) PyroTec is an "accredited investor" under Rule 501(a)
promulgated under the Act.

SECTION 4.6. BROKERS, ETC. PyroTec is not obligated to pay any
fee or commission to any broker, finder or other similar Person
in connection with the transactions contemplated by this
Agreement (other than any fees or commissions that are solely for
the account of PyroTec).

ARTICLE V

CONDITIONS PRECEDENT; RELATED COVENANTS

SECTION 5.1. CLOSING EFFORTS. Each of the parties hereto shall
use its commercially reasonable efforts ("Reasonable Efforts") to
take all actions and to do all things necessary, proper or
advisable to consummate the transactions contemplated by this
Agreement, including using its Reasonable Efforts to ensure that
(i) its representations and warranties remain true and correct in
all material respects through the Closing Date, and (ii) the
conditions to the obligations of the other parties to consummate
the transaction are satisfied.

SECTION 5.2. CONDITIONS PRECEDENT TO OBLIGATIONS OF PYROTEC.
The obligations of PyroTec to transfer the PyroTec Shares and
purchase the Green Ecology Shares at the Closing and upon
satisfaction of the conditions precedent for future releases are
subject to the fulfillment of the condition that, at the Closing,
the representations and warranties of PyroTec set forth in this
Agreement that are qualified as to materiality shall be true and
correct in all respects, and all other representations and
warranties of PyroTec set forth in this Agreement shall be true
and correct in all material respects, in each case as of the date
of this Agreement and as of the Closing as though made as of the
Closing, except to the extent such representations and warranties
are specifically made as of a particular date (in which case such
representations and warranties shall be true and correct as of
such date).

SECTION 5.3. CONDITIONS PRECEDENT TO OBLIGATIONS OF GREEN
ECOLOGY. The obligations of Green Ecology to sell the Green
Ecology Shares and purchase the PyroTec Shares at the Closing and
upon satisfaction of the conditions precedent for future releases
are subject to the fulfillment of the condition that, at the
Closing, the representations and warranties of Green Ecology set
forth in this Agreement that are qualified as to materiality
shall be true and correct in all respects, and all other
representations and warranties of Green Ecology set forth in this
Agreement shall be true and correct in all material respects, in
each case as of the date of this Agreement and as of the Closing
as though made as of the Closing, except to the extent such
representations and warranties are specifically made as of a
particular date (in which case such representations and
warranties shall be true and correct as of such date).

ARTICLE VI

TERMINATION

SECTION 6.1. TERMINATION BY MUTUAL CONSENT. This Agreement may
be terminated and the transactions contemplated hereby may be
abandoned at any time prior to the Closing by the written consent
of each party hereto.

SECTION 6.2. TERMINATION BY EITHER GREEN ECOLOGY OR PYROTEC.
This Agreement may be terminated (upon written notice from the
terminating party hereto to the other party hereto) and the
transactions contemplated hereby may be abandoned by action of
any party hereto, if (a) the Closing shall not have occurred on
or prior to May 15, 2012, or (b) any Federal, state or local
government or any court, administrative agency or commission or
other governmental authority or agency, domestic or foreign shall
have issued a Law or Order permanently restraining, enjoining or
otherwise prohibiting the transactions contemplated hereby and
such Law or Order shall have become final and non-appealable.

SECTION 6.3. EFFECT OF TERMINATION AND ABANDONMENT. In the
event of termination of this Agreement pursuant to this Article
VI hereof, no party hereto or, its directors or officers or other
controlling persons shall have any liability or further
obligation to any other party hereto pursuant to this Agreement,
except that Article VII hereof shall survive termination of this
Agreement and nothing herein will relieve any party hereto from
liability for any breach of this Agreement occurring prior to
such termination.

ARTICLE VII

GENERAL PROVISIONS; OTHER AGREEMENTS

SECTION 7.1. PRESS RELEASES. Other than any required filings
under the Federal securities laws, none of the parties hereto
will, without first obtaining the approval of the other, make any
public announcement, directly or indirectly, regarding this
Agreement, nor the nature of the transaction contemplated by this
Agreement, to any person except as required by law or regulatory
bodies and other than to the respective principals or other
representatives of the Parties, each of whom shall be similarly
bound by such confidentiality obligations. If any such press
release or public announcement is so required by either party
(except in the case of any disclosure required under the Federal
securities laws to be made in a filing with the Securities and
Exchange Commission), the disclosing party shall consult with the
other parties prior to making such disclosure, and the parties
shall use all reasonable efforts, acting in good faith, to agree
upon a text for such disclosure which is satisfactory to each of
the parties.

SECTION 7.2. TAX-FREE TRANSACTION. From and after the date of
this Agreement, Green Ecology shall use all reasonable efforts to
cause the transactions contemplated hereby to qualify, and shall
not knowingly take any actions or permit any actions to be taken
that could reasonably be expected to prevent said transactions
from qualifying as a "reorganization" under Section 368(a) of the
Code for the benefit of PyroTec. This Agreement shall be, and
hereby is, adopted by PyroTec as a plan of reorganization for
purposes of Section 368 of the Code.

SECTION 7.3. EXPENSES. Regardless of whether the transactions
contemplated hereby are consummated, all legal and other costs
and expenses incurred in connection with this Agreement and the
transactions contemplated hereby shall be paid by the party
hereto incurring such costs and expenses.

SECTION 7.4. GOVERNING LAW. This Agreement shall be governed
by and construed in accordance with the laws of the State of
Delaware without regard to the conflicts of laws provisions
thereof.

SECTION 7.5. HEADINGS. Article and Section headings used in
this Agreement are for convenience only and shall not affect the
meaning or construction of this Agreement.

SECTION 7.6. ENTIRE AGREEMENT. This Agreement constitutes the
entire agreement between the parties hereto and supersedes all
prior agreements and understandings, both written and oral, with
respect to the subject matter hereof.

SECTION 7.7. COUNTERPARTS. This Agreement may be executed in
one or more counterparts, each of which shall be deemed an
original but all of which together shall constitute one and the
same instrument. Signatures on this Agreement may be communicated
by facsimile transmission and shall be binding upon the parties
hereto so transmitting their signatures. Counterparts with
original signatures shall be provided to the other parties hereto
following the applicable facsimile transmission; provided that
the failure to provide the original counterpart shall have no
effect on the validity or the binding nature of this
Agreement.

SECTION 7.8. AMENDMENT. Any term of this Agreement may be
modified or amended only by an instrument in writing signed by
each of the parties hereto.

SECTION 7.9. SEVERABILITY. If one or more provisions of this
Agreement are held to be unenforceable under applicable law, such
provision shall be excluded from this Agreement and the balance
of the Agreement shall be interpreted as if such provision were
so excluded and shall be enforced in accordance with its
terms.

IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed and delivered as of the date set
forth above.

GREEN ECOLOGY CO., LTD.

By:/s/ Josephine Chang

Josephine Chang

Chief Executive Officer


PYROTEC, INC.

By: /s/ Mark Rynearson

Mark Rynearson

Chairman of the Board