Calvert’s Sustainability Research Department has submitted the following recommendation regarding action within the Calvert Social Index®. If approved, the recommendation will be effective when the Calvert Social Index Committee convenes its quarterly meeting later this month.

ADDITIONS:

Rock-Tenn Company (NYSE: RKT) a company in the Calvert Social Index Universe, has recently been reviewed and now meets the Index’s standards for environment. The company has demonstrated improved performance and management of its environmental impacts. If approved, the addition will take place on March 24, 2014.

DELETIONS:

None.

What is the Calvert Social Index?

Calvert, a leader in sustainable and responsible investing, has created the Calvert Social Index, a broad-based, rigorously constructed benchmark for measuring the performance of US-based sustainable and responsible companies.

How is the Calvert Social Index constructed?

Calvert starts by taking the 1,000 largest companies in the US, based on total market capitalization, included in the Dow Jones Total Market Index (the “Dow Jones TMI”). The Dow Jones TMI represents the top 95% of U.S. companies based on float-adjusted market capitalization, excluding the very smallest and least-liquid stocks. Calvert's Sustainability Research Department then analyzes each company. A sustainability audit is conducted in the following areas: governance and ethics; environment; workplace; product safety and impact; community relations; international operations and human rights; and indigenous peoples’ rights. The stocks that meet all of the Index’s sustainable and responsible criteria make up the Calvert Social Index.

Effective April 30, 2014, all corporate actions and changes within the Calvert Social Index will be made public only at Calvert.com: www.calvert.com/sri-index.html

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Calvert

Calvert, a leader in sustainable and responsible investing, headquartered in suburban Washington, D.C., has, since our founding in 1976, set industry standards for asset management excellence - in both the way we select companies for our portfolios and how we serve our clients' interests. Our investment approach emphasizes rigorous fundamental research that goes beyond traditional measures to uncover companies with long-term value. Through proven investment management, attentive customer service, an innovative family of investment products, and strong marketing capabilities, Calvert serves individual and institutional investors nationwide as well as professional financial advisors

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