VIA EDGAR

September 17, 2009

Mr. Karl Hiller
Branch Chief
United States Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549
Facsimile No.: (703) 813-6982

Re: Chemical and Mining Company of Chile Inc. Form 20-F for the Fiscal Year
Ended December 31, 2008 Filed on June 30, 2009 (File No. 033-65728)

Dear Mr. Hiller:

This letter is in response to the comment letter of the staff (the
"Staff") of the Securities and Exchange Commission (the "Commission") dated
August 19, 2009 (the "Comment Letter") related to the annual report on Form 20-F
for the fiscal year ended December 31, 2008 (the "Form 20-F") of Chemical and
Mining Company of Chile Inc. (the "Company").

In connection with responding to the Comment Letter, the Company
acknowledges that the Company is responsible for the adequacy and accuracy of
the disclosure in the filing, that the Staff comments or changes to disclosures
in response to Staff comments do not foreclose the Commission from taking any
action with respect to the filing, and that the Company may not assert Staff
comments as a defense in any proceeding initiated by the Commission or any
person under the federal securities laws of the United States.

The Company's responses to the Staff's comments are set forth below.
References to the "Company", "we", "us" and "our" in the responses set forth
below are to the Company, unless the context otherwise requires. All references
in the Company's response to pages and captioned sections are to the Form 20-F
as originally filed. Capitalized terms used in this letter and not otherwise
defined herein have the meaning ascribed to them in the Form 20-F.

For convenience, the Company has included the SEC staff's comments in
italics followed by the Company's response.

Form 20-F for the Fiscal Year ended December 31, 2008
- -----------------------------------------------------

Financial Statements
- --------------------

Note 2 - Summary of Significant Accounting Policies F-9
- -------------------------------------------------------

t) Revenue Recognition, Page F-19
- ---------------------------------

Comment 1:

1. We note your disclosure in which you state that you recognize revenue
on the date goods are physically delivered or when they are considered
delivered to the customers according to the terms of the contracts. For
U.S. GAAP purposes, revenues should not be recognized until the
customer has taken title and assumed the risks and rewards of ownership
of the goods. Please explain any differences between your policy and
that which is required for U.S. GAAP in Note 30 and tell us about any
transactions where revenue has been recognized prior to title being
transferred.

Response 1:

Under statutory GAAP we recognize revenues from sale of our products in
accordance with Technical Bulletin No. 70, Recognition of revenue from sales of
goods and services of the Chilean Association of Accountants, when all of the
following conditions are fulfilled:

(a) we have transferred to the buyer the significant risks and benefits of
ownership of assets;

(b) we do not maintain administrative involvement, to the degree usually
associated with ownership, and we do not retain effective control over
the goods sold;

(d) there is a reasonable degree of certainty that economic benefits
associated with the transaction will flow to us, and

(e) the costs incurred or to be incurred relating to the sale, can be
quantified reliably.

We believe our revenue recognition policy described above is consistent with SAB
104 that establishes that all following four basic criteria be met before
revenue can be considered realized (or realizable) and earned:

(a) persuasive evidence of an arrangement exists;

(b) delivery has occurred or services have been rendered;

(d) collectibility is reasonably assured.

Accordingly, we are of the opinion that there is no difference between our
revenue recognition policy and that required under U.S. GAAP, and therefore, we
did not include respective discussion and adjustments for that concept in the
Note 30 to our consolidated financial statements.

Comment 2:

2. We understand that you record deferred income when invoices are issued
for goods not delivered prior to the balance sheet date. Please
explain to us the circumstances under which you would invoice a
customer prior to the goods being delivered and clarify whether a
receivable is recognized at the time the invoice is issued. For U.S.
GAAP purposes, the recognition of a receivable should coincide with
the recognition of revenue rather than deferred revenue. Deferred
revenue may originate when cash is received from a customer for goods
or services not yet provided. Please address this difference in
accounting in your U.S. GAAP reconciliation at Note 30.

Response 2:

We record deferred income when we issue sales invoices to our clients but actual
deliveries of products to them do not occur before reporting date. This does not
necessarily coincide with the receipt of cash from customers. When we do not
receive cash in such arrangements the corresponding entry is made to the
accounts receivable. Such treatment is a common practice in marketing of
agriculture products in Chile. Deferred income is principally recognized in our
subsidiary Soquimich Comercial S.A. (ThUS$ 13,732 as of December 31, 2008) which
sells its products to farmers in Chile, who due to their limited storage
capacity ask to be billed but at the same time request that Soquimich Comercial
S.A. not ship products billed until specifically instructed by them. Those and
other goods invoiced and recorded as deferred income as of December 31, 2008 by
our other Chilean subsidiaries (in the amount of ThUS$ 17,989) were physically
delivered to clients during 2009. Consistent with our policy described in
Response 1 above we do not recognize revenues before significant risks and
benefits related to ownership of goods has been transferred to our customers
which usually coincides with physical delivery of goods to them. We consider
amounts of this magnitude as insignificant to our total assets, individually and
in aggregate.

The following table presents amounts and percentages of our total assets from
the transactions with deferred income in the years ended December 31, 2008, 2007
and 2006 (unrecognized as of December 31, 2008, 2007 and 2006, respectively)
(amounts in ThUS$, except for percentages):

2008 2007 2006

Deferred income 31,722 10,858 4,065

Total Assets 2,567,215 1,986,319 1,871,202

% Deferred income in Total
Assets 1,2% 0,6% 0,2%

The accounting we apply to the transactions described does not lead to
recognition of revenues in the income statement before revenue recognition
criteria discussed in Response 1 above are met. As such we believe this
accounting treatment does not represent a difference affecting net income or
total shareholders' equity as compared to U.S. GAAP. Consequently we do not
include discussion of this in Note 30 to our consolidated financial statements.

Comment 3:

3. We note your disclosure stating "Income from sales by installment is
determined discounting the cash nominal value, using the interest rate
implicit for this type of sale. In this manner, interest not accrued at
financial statement closing date is presented as a decrease in the
value of the respective documents and as it accrues during the course
of time, it recognized as interest income". Please tell us the
conditions under which revenue is recognized by this installment
method, and the percentage of your revenues it represents for each
financial statement period presented. Please include details sufficient
to understand how your accounting complies with paragraph 1 of Chapter
1A of ARB 43 and paragraph 12 of APB 10 for U.S. GAAP purposes, if that
is your view.

Response 3:

Our revenue recognition policy considers recognition of implied interest income
related to sales to certain customers for which we accept extended payment terms
over our customary trade terms (approximately 90 days on average) in the normal
course of business. We believe that in such transactions apart from selling our
products we also provide financing to the customers. As such in addition to the
result on sale we recognize interest income on an accrual basis over the payment
term using the effective interest rate method. In our opinion such policy is
consistent with APB 21, Interest on Receivables and Payables. The transactions
with the extended payment terms described in this paragraph do not constitute
sale in installments to which paragraph 1 of Chapter 1A of ARB 43, Restatement
and Revision of Accounting Research Bulletins and paragraph 12 of APB 10,
Omnibus Opinion--1966 would be applicable. The following table presents amounts
and percentages of our revenues from the transactions with extended payments
terms and interest income earned from them in the years ended December 31, 2008,
2007 and 2006 as well as amount of deferred interest to be

recognized in following periods (unrecognized as of December 31, 2008, 2007 and
2006, respectively) (amounts in ThUS$, except for percentages):

2008 2007 2006

Total sales 1,774,119 1,187,527 1,042,886
Sales with extended payment terms 146,345 126,273 97,861
% of sales with extended payment terms in total
sales 8.25% 10.63% 9.38%
Interest income earned 6,152 2,565 2,231
Deferred income to be recognized in following
periods 2,662 1,368 937

x) Provisions for Mine Closure Costs, page F-20
- -----------------------------------------------

Comment 4:

4. We note your disclosure indicating that you recognize provisions to
cover costs associated with closure of mining facilities and
mitigation of environmental damage. Please explain to us in further
detail how you recognize obligations associated with the closure of
your mining facilities, and why you believe this accounting policy is
consistent with the U.S. GAAP guidance found in SFAS 143 as there
appears to be no reconciling item at Note 30 relating to this
particular policy. Further, as an Item 18 filer you should disclose
all information required by U.S. GAAP. Please submit the disclosures
that you propose to comply with paragraph 22 of SFAS 143 for any asset
retirement obligations you have recorded.

Response 4:

We record provisions to cover costs associated with closure of mining facilities
and related dismantling and restoration activities as we have legal obligations
associated with certain of our long-lived assets resulting from their
acquisition, construction, development or normal operation. Our obligation is
principally derived from the provisions of the Reglamento de Seguridad Minera
(Mining Security Regulation), Supreme Decree No. 132 of the Chilean Ministry of
Mining which, among others, requires us to withdraw certain assets and make
certain restoration works in our mining facilities once they have completed
their period of operation. We recognize the obligation (provision) when a
reasonable estimate of its fair value can be made. We determine the amount as
the present value of the estimated costs to be incurred when performing
dismantling and restoration activities discounted using a credit-adjusted
risk-free rate. We believe that the determination of the obligation is in
accordance with the U.S. GAAP guidance found in SFAS 143, Accounting for Asset
Retirement Obligations.

According to operational studies we have developed in relation to the closure of
our mines, the average remaining term until dismantling and restoration work
will be required is 25 years. Considering such long-term horizon and relatively
low level of associated estimated

costs due to nature of our operations and assets involved, the provision
determined by us amounts to ThUS$ 3,181 and ThUS$ 1,992 as of December 31, 2008
and 2007, respectively. We consider amounts of this magnitude as insignificant
to our financial position, results of operations and cash flows and consequently
we recognize changes in the provision for closure of our mining facilities
directly in the income statement. For the same reason we did not include
additional disclosures in the Notes to our consolidated financial statements
other than those in Note 2x) and Note 15a).

Should you have any question or comments about the responses in this letter,
please contact the undersigned at (56-2)-425-2485. Alternatively, please contact
Patricio Vargas at (56-2) 425-2274.

Sincerely,

/s/ Ricardo Ramos R.

Ricardo Ramos R.
Chief Financial Office & Business
Development Senior Vice President

VIA EDGAR AND TELECOPIER
- --- ----- --- ----------

cc: Ms. Joanna Lam
Ms. Jennifer Gallagher