Exhibit 99.1

News Release

FOR IMMEDIATE RELEASE

KEMET CORPORATION SET TO JOIN RUSSELL 3000 INDEX

Greenville, South Carolina (June 24, 2011) - KEMET Corporation (NYSE: KEM) is set to join the U.S. broad-market Russell 3000Ò Index when Russell Investments reconstitutes its comprehensive set of U.S. and global equity indexes later today, according to a preliminary list of additions posted June 17 on www.russell.com/indexes.

Annual reconstitution of Russell’s U.S. indexes captures and ranks the 4,000 largest U.S. stocks as of the end of May by total market capitalization. Membership in the Russell 3000, which remains in place for one year, means automatic inclusion in the large-cap Russell 1000Ò Index or small-cap Russell 2000Ò Index as well as the appropriate growth and value style indexes. Russell determines membership for its equity indexes primarily by objective, market-capitalization rankings and style attributes.

The Russell 3000 also serves as the U.S. component to the Russell Global Index.

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. An industry-leading $3.9 trillion in institutional assets currently are benchmarked to them. These investment tools originated from Russell’s multi-manager investment business in the early 1980s when the company saw the need for a more objective, market-driven set of benchmarks in order to evaluate outside investment managers.

More information about Russell Indexes, including total returns, is available at http://www.russell.com/Indexes/data/default.asp.

About Russell:

Russell Investments provides strategic advice, world-class implementation, state-of-the-art performance benchmarks and a range of institutional-quality investment products. Russell has about $161 billion in assets under management as of March 31, 2011, and serves individual, institutional and advisor clients in more than 35 countries. Founded in 1936, Russell is a subsidiary of The Northwestern Mutual Life Insurance Company.

About KEMET

The Company’s common stock is listed on the NYSE under the ticker symbol ‘KEM’ (NYSE: KEM).  At the Investor Relations section of our web site at http://www.KEMET.com/IR, users may subscribe to KEMET news releases and find additional information about our Company.  KEMET applies world class service and quality to deliver industry leading, high performance capacitance solutions to its customers around the world and offers the world’s most complete line of surface mount and through hole capacitor technologies across tantalum, ceramic, film, aluminum, electrolytic, and paper dielectrics. Additional information about KEMET can be found at http://www.kemet.com.

CAUTIONARY STATEMENT ON FORWARD-LOOKING STATEMENTS

Certain statements included herein contain forward-looking statements within the meaning of federal securities laws about KEMET Corporation’s (the “Company”) financial condition and results of operations that are based on management’s current expectations, estimates and projections about the markets, in which the Company operates, as well as management’s beliefs and assumptions. Words such as “expects,” “anticipates,” “believes,” “estimates,” variations of such words and other similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions, which are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in, or implied by, such forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s judgment only as of the date hereof. The Company undertakes no obligation to update publicly any of these forward-looking statements to reflect new information, future events or otherwise.

Factors that may cause actual outcome and results to differ materially from those expressed in, or implied by, these forward-looking statements include, but are not necessarily limited to the following:

(i) adverse economic conditions could impact our ability to realize operating plans if the demand for our products declines, and such conditions could adversely affect our liquidity and ability to continue to operate; (ii) adverse economic conditions could cause the write down of long-lived assets; (iii) an increase in the cost or a decrease in the availability of our principal raw materials; (iv) changes in the competitive environment; (v) uncertainty of the timing of customer product qualifications in heavily regulated industries; (vi) economic, political, or regulatory changes in the countries in which we operate; (vii) difficulties, delays or unexpected costs in completing the restructuring plan; (viii) inability to attract, train and retain effective employees and management; (ix) inability to develop innovative products to maintain customer relationships and offset potential price erosion in older products; (x) exposure to claims alleging product defects; (xi) the impact of laws and regulations that apply to our business, including those relating to environmental matters; (xii) volatility of financial and credit markets affecting our access to capital;  (xiii) needing to reduce the total costs of our products to remain competitive; (xiv) potential limitation on the use of net operating losses to offset possible future taxable income; (xv) exercise of the warrant by K Equity which could potentially may result in the existence of a significant stockholder who could seek to influence our corporate decisions; and (xvi) recent events in Japan could negatively impact our sales and supply chain.