Exhibit 99.1

TARP Subsequent Fiscal Year Certification of the

Principal Executive
Officer of PremierWest Bancorp

I, James M. Ford, certify, based on my knowledge, that:

(i) The compensation committee of PremierWest Bancorp (the Company) has discussed, reviewed, and evaluated with senior risk
officers at least every six months during any part of the most recently completed fiscal year that was a TARP period, senior executive officer (SEO) compensation plans and employee compensation plans and the risks these plans pose to the
Company;

(ii) The compensation committee of the Company has identified and limited during any part of the most recently
completed fiscal year that was a TARP period any features of the SEO compensation plans that could lead SEOs to take unnecessary and excessive risks that could threaten the value of the Company and has identified any features of the employee
compensation plans that pose risks to the Company and has limited those features to ensure that the Company is not unnecessarily exposed to risks;

(iii) The compensation committee of the Company has reviewed, at least every six months during any part of the most recently completed fiscal year that was a TARP period, the terms of each employee
compensation plan and identified any features of the plan that could encourage the manipulation of reported earnings of the Company to enhance the compensation of an employee, and has limited any such features;

(iv) The compensation committee of the Company will certify to the reviews of the SEO compensation plans and employee compensation plans
required under (i) and (iii) above;

(v) The compensation committee of the Company will provide a narrative
description of how it limited during any part of the most recently completed fiscal year that was a TARP period the features in:

(A) SEO compensation plans that could lead SEOs to take unnecessary and excessive risks that could threaten the value of the Company;

(B) Employee compensation plans that unnecessarily expose the Company to risks; and

(C) Employee compensation plans that could encourage the manipulation of reported earnings of the Company to enhance the
compensation of an employee;

(vi) The Company has required that bonus payments to SEOs or any of the next twenty most highly
compensated employees, as defined in the regulations and guidance established under section 111 of EESA (bonus payments), be subject to a recovery or clawback provision during any part of the most recently completed fiscal
year that was a TARP period if the bonus payments were based on materially inaccurate financial statements or any other materially inaccurate performance metric criteria;

(vii) The Company has prohibited any golden parachute payment, as defined in the regulations and guidance established under section 111 of EESA, to a SEO or any of the next five most highly compensated
employees during any part of the most recently completed fiscal year that was a TARP period;

(viii) The Company has limited
bonus payments to its applicable employees in accordance with section 111 of EESA and the regulations and guidance established thereunder during any part of the most recently completed fiscal year that was a TARP period;

(ix) The Company and its employees have complied with the excessive or luxury expenditures policy, as defined in the regulations and
guidance established under section 111 of EESA, during any part of the most recently completed fiscal year that was a TARP period; and any expenses that, pursuant to the



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policy, required approval of the board of directors, a committee of the board of directors, an SEO, or an executive officer with a similar level of responsibility were properly approved;

(x) The Company will permit a non-binding shareholder resolution in compliance with any applicable Federal securities rules
and regulations on the disclosures provided under the Federal securities laws related to SEO compensation paid or accrued during any part of the most recently completed fiscal year that was a TARP period;

(xi) The Company will disclose the amount, nature, and justification for the offering, during any part of the most recently completed
fiscal year that was a TARP period, of any perquisites, as defined in the regulations and guidance established under section 111 of EESA, whose total value exceeds $25,000 for any employee who is subject to the bonus payment limitations identified
in paragraph (viii);

(xii) The Company will disclose whether the Company, the board of directors of the Company, or the
compensation committee of the Company has engaged during any part of the most recently completed fiscal year that was a TARP period a compensation consultant; and the services the compensation consultant or any affiliate of the compensation
consultant provided during this period;

(xiii) The Company has prohibited the payment of any gross-ups, as defined in the
regulations and guidance established under section 111 of EESA, to the SEOs and the next twenty most highly compensated employees during any part of the most recently completed fiscal year that was a TARP period;

(xiv) The Company has substantially complied with all other requirements related to employee compensation that are provided in the
agreement between the Company and Treasury, including any amendments;

(xv) The Company has submitted to Treasury a complete
and accurate list of the SEOs and the twenty next most highly compensated employees for the current fiscal year, with the non-SEOs ranked in descending order of level of annual compensation, and with the name, title, and employer of each SEO and
most highly compensated employee identified; and

(xvi) I understand that a knowing and willful false or fraudulent statement
made in connection with this certification may be punished by fine, imprisonment, or both.



|                      |  |                                      
|--------------------- |  | -------------------------------------
|Dated: March 16, 2011 |  | /s/ James M. Ford                    
|                      |  | James M. Ford                        
|                      |  | President and Chief Executive Officer
|                      |  | PremierWest Bancorp