The lead development associations (LDA) has an environmental study group which brings the manufacturers together to discuss problems of industrial health, it provides a technical information service for members, a library and produces publications on aspects of lead use. In the immediate aftermath of war the level of home demand for lead products, especially for the building industry, was high and there was little concern about competitive products. Since then the LDA has done much publicity work in order to increase the consumption of lead and has held international conferences in conjunction with other LDA which exist in many countries throughout the world. On 1 January 1949 the major lead companies in the group were amalgamated to form Associated Lead Manufacturers Ltd and the old company names were dropped. While the lead oxide market was becoming more competitive, that in white lead was becoming less so as outside competitors declined in number.