LAYNE MINERAL EXPLORATION SERVICES Layne Christensen’s Mineral Exploration Division conducts above ground and underground drilling activities, including the following methods: Core Drilling Hammer Drilling Down The Hole Percussion Hammer AP1000 Hammer and Casing Driver Reverse Circulation Drilling Rotary Air-Blast Our service offerings include both exploratory and definitional drilling. Exploratory drilling is conducted to determine if there is a minable mineral deposit, which is known as an orebody, on the site. Definitional drilling is typically conducted at a site to assess whether it would be economical to mine and to assist in mapping the mine layout. The demand for our definitional drilling services has increased in recent years as new and less expensive mining techniques have made it feasible to mine previously uneconomical orebodies. Global mining companies hire the us to extract samples from a site that the mining companies analyze for mineral content before investing heavily in development. Our drilling services require a high level of expertise and technical competence because the samples extracted must be free of contamination and accurately reflect the underlying mineral deposit.