Shareholders from Coca-Cola will vote 21 April on a proposal urging the company to disclose how it is responding to public fears over bisphenol A, which is used in the linings of Coke's beverage cans. The move comes after social investment companies accused Coca-Cola of failing to show shareholders & consumers that it was taking sufficient steps to address public anxiety over the substance. The bid is the first ever shareholder motion focussed solely on BPA, said Domini Social Investments, As You Sow, & Trillium Asset Management Corporation, the trio of groups behind filing the proposal. The groups highlighted the alleged failure by contrasting Coke's actions with those of other manufacturers, such as Eden Foods which has used BPA-free cans since 1999. It also pointed to the announcement by General Mills that it will offer BPA-free linings in its organic canned tomatoes. BPA is not used in Coca-Colas plastic bottles.