Also in 2014, foreign and domestic flooring suppliers alerted Lumber Liquidators of CARB compliance concerns related to the company's Chinese laminate products. In February 2014, Lumber Liquidators' Chinese laminate suppliers requested a price increase citing concerns about the increased cost of CARB compliant cores and their ability to pass deconstructive testing for formaldehyde emissions. Approximately one month later, a U.S. laminate supplier informed Lumber Liquidators that it tested a Chinese laminate sample purchased from one of Lumber Liquidators' stores in the United States and that the sample emitted high levels of formaldehyde. Lumber Liquidators took only limited steps to determine the validity of the suppliers' concerns, and instead sought to generate support for its position that deconstructive testing was not a valid test method, the company admitted.