The protest, which it said was against Arch’s efforts to avoid obligations to its retirees, is set for July 30 at 9.30am local time.

UMWA president Cecil Roberts will once again be in attendance to speak before a crowd of supporters, as will IBEW president Ed Hill, A Philip Randolph Institute president Clayola Brown and SIEU West Virginia/Kentucky Health Care Division executive vice president Kathy McCormick.

Following a string of demonstrations against financially troubled Patriot Coal and Peabody Energy, which spun off Patriot in 2007, the industry union has widened its focus to include Arch, which created Magnum Coal in 2005.

According to the UMWA, it unloaded $560 million in retiree health care liabilities onto Patriot at that time.

Patriot later acquired Magnum and its liabilities in 2008.

“I never worked a day in my life for Patriot,” West Virginia union member Shirley Inman told the union.

Instead she worked 18 years for Arch Coal before suffering a disabling injury.

“It’s just not right for these companies to play a corporate shell game, set up a new company that goes broke, then say they don’t have any obligation to us,” Inman said.

“Arch Coal made that promise to me, not Patriot. Arch needs to keep its promise and live up to the obligations it made.”

Roberts said the rally was organized to let Arch executives know that they had not been forgotten.

“They started this scheme when they set up Magnum Coal in 2005,” he said.

“These corporate executives can play accounting games all day long, but we know who made the obligations to these miners. A wrong has been done to them, and we’re not going to stop until that wrong is made right.”

A request for comment from Arch was not immediately returned.

The UMWA’s last protest event in Fairmont, West Virginia, near Peabody’s Federal No. 2 operation, drew an estimated 5000 people and 31 of them were arrested for non-violent civil disobedience.