On November 27 - 28th, invited by Conch, China Orica the fourth blasting technology meeting held at Wuhu Conch guesthouse. About 80 mine experts, engineers and technicians from China National Coal Group Corp, Shenhua Group Corportation Limited etc enterprises participates the technology communication conference.

Participants discussed the blasting security, environmental protection, reducing the blasting vibration, improving blasting effect, saving mining cost, optimizing blasting parameter etc series of questions. Overseas blasting expert also made the special course about explosive equipment development, the advanced blasting theory and anticipated blasting effect.