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ForwardSTL

  Ameren Corp. is promoting Warner Baxter to president of the St. Louis-based utility, effective immediately, and he'll become CEO this spring.

Baxter is a longtime executive at Ameren. He succeeds Thomas Voss, who will retire on July 1.

Ameren said Tuesday that Baxter also has been elected to the board of directors. He will become chief executive on April 24 — the day Voss will become Ameren's executive chairman.