**UPDATE**: Dave Mustaine has refuted HAVOK's claims via Twitter, saying simply: "That's untrue".
The original article follows below.
Denver, Colorado thrashers HAVOK claim to have been removed from the billing of the upcoming MEGADETH tour with AMON AMARTH, SUICIDAL TENDENCIES and METAL CHURCH after they were "offered an unacceptable management contract" from Mustaine Management, headed up by Justis Mustaine, the 24-year-old son of MEGADETH mainman Dave Mustaine.
HAVOK guitarist/vocalist David Sanchez said in a statement: "It is with deep regret we are forced to inform fans of metal that we will not be on the upcoming MEGADETH tour with AMON AMARTH, SUICIDAL TENDENCIES and METAL CHURCH. We will also not be going to Mexico in August and early September as was planned.
"We were really looking forward to these shows, but, unfortunately, Mr. Mustaine has chosen to remove us from the lineup. The reasons for our absence are directly related to a contract negotiation insisted upon by Mustaine Management — a negotiation that has gone awry. We are authorized to say that we were offered an unacceptable management contract from Mustaine Management, which we declined.
"While working with our lawyer to negotiate the terms of the contract, Mustaine Management threatened to kick us off of the MEGADETH tour, Mustaine Management repeatedly failed to respond to phone calls and e-mails, and eventually told us (through their lawyer) that Mustaine Management is no longer working with HAVOK. We are only releasing this information to give fans an honest account of the reasons we are no longer on the tour.
"We cannot disclose more details at this time (at our attorney's directive), but nonetheless, would like to thank Mustaine Management for the past opportunities that they brought to the table while working with us. We would also like to apologize to the fans that will not be able to see us this fall — we will sorely miss all of you. New tour dates will be announced soon and we look forward to getting back on the road to headbang with the best fans in the world."
HAVOK is working on its fourth studio album, to be released this winter via Century Media Records.