WILMINGTON, Del. - Six insurance companies, having lost their recent bid to reopen the Chapter 11 case of T H Agriculture & Nutrition LLC (THAN) so they could audit the THAN asbestos trust for evidence of fraud, filed a complaint on July 2 in Delaware state court, alleging that THAN has breached a five-year-old settlement agreement and its plan of reorganization by blocking the insurers' attempts to audit the trust (AIU Insurance Company, et al. v. Philips Electronics North America Corporation, et al., No. 9852, Del. Chanc.).