A vice president and three managers of a Texas pallet company with a factory in Guilderland were charged Thursday with bringing illegal immigrants into the U.S. to work, including here.

The indictment is the latest development in the federal government's case against IFCO Systems North America. Prosecutors have argued since April 2006, when federal immigration authorities raided 45 plants around the country, that IFCO managers systematically recruited illegal workers.

During the April 2006 raid, Immigration and Customs Enforcement officers detained more than 1,180 illegal workers. Among those, 24 of 26 pallet workers here were illegal; 18 of 19 in Rittman; 20 of 21 in Boston; and all 27 in St. Louis.

Last year, seven IFCO managers pleaded guilty to felony and misdemeanor charges related to the unlawful employment of illegal immigrants and could face up to 10 years in prison.

E. Stewart Jones, the attorney for William Hoskins, who was indicted in April and named again Thursday in connection to new charges, said Hoskins had no part in hiring illegal workers.

Jones said he had not yet seen the latest indictment, but said Hoskins was not responsible and unaware of any practice that may have existed to bring in illegals. Hoskins, 30, of Cincinnati, is free on a personal recognizance bond, Jones said.

Thursday's indictment named Charles Davidson, 45, of San Antonio, Texas, the vice president of New Market Development, which is the operation IFCO used to establish new pallet plants, according to court papers.

Also indicted were: Bryan Bailey, 28, of Nashville, Tenn., New Market Development manager; Thomas Soto Castillo, 44, of Cincinnati, the foreman of the plant in Cincinnati and a manager in New Market Development; and Wendy Mudra, 33, of Tampa, Fla., a human resources manager. They have not yet been arraigned, Assistant U.S. Attorney Tina Sciocchetti said Thursday.

Each defendant was charged with felonies having to do with harboring, transporting, encouraging and inducing illegal immigrants. All the charges carry between five and 10 years in prison.