PT Wijaya Karya Beton Sales Region IV Semarang is one of the companies engaged in the production of precast concrete industry. To deal with increasingly fierce competition, the company must do a proper marketing strategy to increase sales volume. The purpose of writing this final project is to determine the marketing strategy used by PT Wijaya Karya Beton Sales Region IV Semarang to increase sales volume and to determine the barriers faced by PT Wijaya Karya Beton Sales Region IV Semarang in implementing marketing strategies.This final report is written descriptively by using primary and secondary data which are obtained by interviews, observation and literature review. Marketing strategy used to increase the volume of sales at PT Wijaya Karya Beton Sales Region IV Semarang is market selection, product strategy, pricing strategy, promotion strategy and distribution strategy. It was concluded that PT Wijaya Karya Beton Sales Region IV Semarang should have a proper marketing strategy to increase the volume of selling.