A breach of contract suit over the sale of a contaminated chemical site in New Jersey can be expanded to include claims that the seller concealed information about its remediation efforts and tried to stick Ashland Inc. with the bill for the cleanup, a judge in Delaware has ruled.

Delaware Superior Court Judge Eric M. Davis on June 21 said the Kentucky-based specialty chemicals company had established a separate basis for fraud claims stemming from its $3.2 billion acquisition of International Specialty Products from the family of financier Samuel J. Heyman in 2011.