----

**ACCOUNT        PURCHASE AGREEMENT**

**ARTICLE        I**

**Purpose        of Agreement**

**1.01**
**Purpose        of Agreement. **

**ARTICLE        II**

**Definitions**

**2.01**
**"Account"        **

**2.02**
**"Acceptable        Account" **

**2.03**
**"Account        Debtor" **

**2.04**
**"Account        Debtor Dispute" **

**2.05**
**"Collateral"        **

**2.06**
**"Collected        Reserve Account" **

**2.07**
**"Customer"        **

**2.08**
**"Event        of Default" **

----

**2.09**
**"Initial        Payment"**

**2.10**
**"Minimum        Fee"**

**2.11**
**"Net        Purchase Price"**

**2.12**
**"Origination        Fee"**
*and        on each renewal of this Agreement, *

**2.13**
**"Part        Payment"**

**2.14**
**"Repurchase        Price"**

**2.15**
**"Unacceptable        Account"**

**2.15(a)**

**2.15(b)**

**2.15(c)**

**2.15(d)**

**2.15(e)**

**2.15(f)**

**2.15(g)**

**2.15(h)**

**2.15(i)**

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**2.16**
**"WFBC        Discount"**

| Days                                                      | Rate                                                                                                |
|-----------------------------------------------------------|-----------------------------------------------------------------------------------------------------|
| (for                  paymentof                  Account) |                                                                                                |
| 1-10                                                      | 1.0%                  of the gross face amount of each Account purchased by                  WFBC.  |
| +11                                                       | .07                  of 1% additionally per day until the Account is paid in                  full. |

**ARTICLE        III**

**Purchase        of Accounts**

**3.01**

**3.01(a)**

**3.0**
**l(b)**

**3.01**
**(c)**

**3.02**
**Approval:**

**3.03**
**Purchase:**

**3.04**
**Purchase        Price:**

**3.05**
**Payment        of Purchase Price:**

**3.05(a)**

----

**3.05(b)**

**3.05(c)        **

**3.05(d)        **

**3.06**
**Reporting        and Statement of Account:**

**3.07**
**Required        Forms:**

**3.08**
**Notification:**

**3.09**
**Notation        of Assignment:**

**Wells        Fargo Business Credit, Inc.**

**3.10**
**Sole        Property:**

**3.12**
**Book        Entry:**

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**ARTICLE        IV**

**Customer's        Representations, Warranties and Covenants**

**4.01**
**Representations        and Warranties. **

**4.01        (a) **

**4.01        (b) **

**4.01        (c) **

**4.01        (d) **

**4.01        (e) **

**4.01        (f) **

**4.01        (g) **

**4.01        (h) **

**4.01        (i) **

**4.01        **
**(j)        **

**4.02**
**Negative        Covenants. **

**4.02        **
**(a)**

----

**4.02        (b)**

**4.02        (c)**

**4.02        (e)**

**4.02        (f) **

**4.02        **
**(g)**

**4.03**
**Affirmative        Covenants.**

**4.03        **
**(a)**

**4.03        (b)**

**4.03        (c)**

**4.03        (d)**

**4.03        (e)**

**4.03        (f)**

----

**4.03        (g) **

**4.03        (h) **

**4.03        (i) **

**4.03        (j) **

**ARTICLE        V**

**Security        Interest**

**5.01**
**Security        Interest/Collateral: **

**5.02**
**Security        Documents: **

**ARTICLE        VI **
**Operational        Provisions**

**6.01**
**Repurchase:        **

**6.02**
**Power        of Attorney: **

**6.02(a)        **

**6.02(b)        **

----

**6.02(c)        **

**6.02(d)        **

**6.02(e)        **

**6.02(f)        **
** **

**6.02(g)        **

**6.02(h)        **

**6.02(i)        **

**6.03**
**Double        Payments: **

**6.04**
**Hold        Harmless: **

**6.05**
**Taxes:        **

**6.06**
**Minimum        and Origination Fee: **
*and        at the anniversary date upon each *
*renewal,        *

**6.07**
**Reports:        **

**6.08**
**WFBC        Settlement of Accounts: **

**6.09**
**Customer        Settlement of Accounts: **

----

**6.10**
**Documents:**

**6.11**
**Information:**

**ARTICLE        VII**

**Default**

**7.01**

**7.01        (a)**

**7.01        (b)**

**7.01        (c) **

**7.01        (d) **

**7.01        (e)**

**7.01        (f)**

**7.01        (g)**

**7.01        (h)**

**7.01        (i)**

**7.01        (j)**

**ARTICLE        VIII**

**Remedies**

**8.01**

**8.01        (a)**

**8.01        (b)**

**8.01        (c)**

**8.01        (d)**

----

**8.01        (e) **

**8.01        (f) **

**8.01        (g) **

**8.01        (h) **

**8.01        (i) **

**8.01        (j) **

**8.01        (k) **

**ARTICLE        IX**

**Term        and Termination**

**9.01**

**9.02**

**9.03**

**ARTICLE        X**

**Miscellaneous        Provisions**

**10.01**
**Binding        on Future Parties: **

----

**10.2**
**Cumulative        Rights:**

**10.3**
**Waiver:**

**10.4**
**Choice        of Law:**

**10.5**
**Invalid        Provisions:**

**10.06:**
**Entire        Agreement:**

**10.07**
**Amendment:        **

**10.08**
**Effective:**

**10.09**
**Information:**

**10.10**
**Indemnification:**

**10.11**
**Notices        hereunder:**

**10.12**
**Costs        and Expenses:**

----

**10.13**
**Audit:        **

**10.14**
**Jurisdiction:        **

**10.15**
**Waiver        of Jury Trial**
**:        THE CUSTOMER HEREBY IRREVOCABLY WAIVES ALL RIGHTS TO TRIAL **
**BY        JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF, BASED ON OR        **
**PERTAINING        TO THIS AGREEMENT.**

| Executed                  and accepted this | 3      | day                  of | November   | at     | Rifle,                  CO. |
|---------------------------------------------|--------|-------------------------|------------|--------|-----------------------------|
|                                        |   |                    | Month/Year |   | City/State                  |

| Natural                  Soda, Inc.  |                              | WELLS                  FARGO BANK, NATIONAL ASSOCIATION |
|--------------------------------------|-----------------------------------|---------------------------------------------------------|
| 3200                  County Road 31 |                              | 1740                  Broadway MAC C7300-060            |
| Rifle,                  CO 81650     |                              | Denver,                  CO 80274                       |
|                                 |                              |                                                    |   |   |
| By:                                  | /s/                  Bill H. Gunn |                                                    | By: | /s/                  Kei Lehigh |
|                                 | Signature                         |                                                    |   | Signature |
|                                 |                              |                                                    |   |   |
| By:                                  | Bill                  H. Gunn     |                                                    | By: | Kei                  Lehigh |
|                                 | Name                              |                                                    |   | Name |
|                                 |                              |                                                    |   |   |
| Its:                                 | President                         |                                                    | Its: | Vice                  President |
|                                 | Title                             |                                                    |   | Title |

| Sworn                  and subscribed before me this | 3                                | day                             |      | Witnessed                  by: |
|------------------------------------------------------|----------------------------------|---------------------------------|-----------|--------------------------------|
| of                                                   | November,                  2005. |                            |      |                           |   |
|                                                 |                             |                            | Signature |
| /s/                  Ruth N. Koenig                  |                             |                            |
| NOTARY                  PUBLIC                       |                             | NAME                  AND TITLE |