EXHIBIT A

THE HERITAGE GROUP GENERAL PARTNER TRUSTS

Business Address: 5400 W. 86th Street, Indianapolis, Indiana 46268

Maggie Fehsenfeld Trust No. 100, dated December 30, 1974 (for the benefit of Debra Ann Baker and her issue)

Maggie Fehsenfeld Trust No. 101, dated December 30, 1974 (for the benefit of Trina Lee Fehsenfeld and her issue)

Maggie Fehsenfeld Trust No. 102, dated December 30, 1974 (for the benefit of Mark Edgar Fehsenfeld and his issue)

Maggie Fehsenfeld Trust No. 103, dated December 30, 1974 (for the benefit of Frank Stockdale Fehsenfeld and his issue)

Maggie Fehsenfeld Trust No. 104, dated December 30, 1974 (for the benefit of John Michael Fehsenfeld and his issue)

Maggie Fehsenfeld Trust No. 105, dated December 30, 1974 (for the benefit of James Cornelius Fehsenfeld and his issue)

Maggie Fehsenfeld Trust No. 106, dated December 30, 1974 (for the benefit of Fred Mehlert Fehsenfeld Jr. and his issue)

Maggie Fehsenfeld Trust No. 107, dated December 30, 1974 (for the benefit of Judith Louise Fehsenfeld and her issue)

Maggie Fehsenfeld Trust No. 108, dated December 30, 1974 (for the benefit of Jan Marie Dillow and her issue)

Maggie Fehsenfeld Trust No. 109, dated December 30, 1974 (for the benefit of Jo Anne Rutigliano and her issue)

Maggie Fehsenfeld Trust No. 111, dated December 30, 1974 (for the benefit of William S. Fehsenfeld and his issue)

Maggie Fehsenfeld Trust No. 112, dated December 30, 1974 (for the benefit of Thomas V. Fehsenfeld and his issue)

Maggie Fehsenfeld Trust No. 113, dated December 30, 1974 (for the benefit of Nancy F. Smith and her issue)

Irrevocable Intervivos Trust for the Benefit of Debra Ann Baker and her issue, dated December 1973

Irrevocable Intervivos Trust for the Benefit of Trina Lee Fehsenfeld and her issue, dated December 26, 1973

Irrevocable Intervivos Trust for the Benefit of Mark Edgar Fehsenfeld and his issue, dated December 26, 1973

Irrevocable Intervivos Trust for the Benefit of Frank Stockdale Fehsenfeld and his issue, dated December 27, 1973

Irrevocable Intervivos Trust for the Benefit of John Michael Fehsenfeld and his issue, dated December 27, 1973

Irrevocable Intervivos Trust for the Benefit of James Cornelius Fehsenfeld and his issue, dated December 27, 1973

Irrevocable Intervivos Trust for the Benefit of Fred Mehlert Fehsenfeld, Jr. and his issue, dated December 27, 1973

Irrevocable Intervivos Trust for the Benefit of Judith Louise Fehsenfeld and her issue, dated December 27, 1973

Irrevocable Intervivos Trust for the Benefit of Jan Marie Dillow and her issue, dated December 27, 1973

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Irrevocable Intervivos Trust for the Benefit of Jo Anne Rutigliano and her issue, dated December 27, 1973

Irrevocable Intervivos Trust for the Benefit of John Allen Fehsenfeld and his issue, dated December 24, 1973

Irrevocable Intervivos Trust for the Benefit of William S. Fehsenfeld and his issue, dated December 24, 1973

Irrevocable Intervivos Trust for the Benefit of Thomas V. Fehsenfeld and his issue, Dated December 24, 1973

Irrevocable Intervivos Trust for the Benefit of Nancy F. Smith and her issue, dated December 24, 1973

Irrevocable Intervivos Trust for the Benefit of Ruth Mary Fehsenfeld and her issue, dated December 24, 1973

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