Company History

	Compañía de Explosivos de Chile was founded on November 9th.

	Explosive manufacturing began at the Río Loa plant. The corporate name was changed to Compañía Sudamericana de Explosivos.

	Through the Chilean Economic Development Agency (CORFO), the Chilean government took full control of the Company, changing its name to Empresa Nacional de Explosivos.

	First Mobile Manufacturing Unit.

	Production of nitric acid and ammonium nitrate began at the plant in Mejillones (Prillex América).

	The Company was privatized through acquisition by Chilean investors, FAMAE, and U.S.-based Austin Powder Company.

	The Company's corporate name was changed to ENAEX S.A.”

	Sigdo Koppers acquired a 33% interest in Enaex S.A.

	Enaex was formed as a publicly held corporation.

	Construction of a new ammonium nitrate plant began on the Company's property in Mejillones.

	Sigdo Koppers S.A. increased its ownership interest in Enaex to 50.1%.

	The ammonium nitrate project began with an investment of approximately US$130 million in a new plant with production capacity of 350,000 tons/year. This investment brought the Company's total capacity to 450,000 tons/year.

	Production of ammonium nitrate began at the new plant in Mejillones.

	Enaex earned the National Quality Award (Premio Nacional a la Calidad) in the large corporation category.

	The Company carried out a successful capital increase of US$68 million and secured two loans totaling US$125 million in order to finance the new ammonium nitrate plant in Mejillones. The Company decided to implement a carbon credit project in Mejillones.

	Subsidiary Enaex Argentina SRL was created. The carbon credit project and construction of a new ammonium nitrate plant began.

	The carbon credit project's certified emissions reduction initiative was launched. Subsidiary Enaex Servicios S.A. was created and the Company was split into manufacturing and service divisions.

	The carbon credit project was approved under the Kyoto Protocol and the United Nations officially issued the first emissions reduction certificates, allowing Enaex to sell its carbon credits to Mitsubishi Corporation in Japan.

	The new ammonium nitrate plant (Panna 4) opened, bringing total production to 850 thousand tons and making it the world's largest explosive-grade ammonium nitrate production complex.

	The Prillex complex reached its maximum, nominal capacity, at 850 thousand tons of ammonium nitrate per year. UNFCC approved the Panna 4 carbon credit project. Enaex solidified its position as the national leader in CO2reduction and emission of carbon credits (Certified Emission Reduction, CERs).

	Enaex acquires a one-third stake in IBQ Industrias Químicas (Britanite) in Brazil. In late 2012, Enaex launched a new project called "The New Enaex Cycle", updating its image and headquarters, aligning them with new growth and productivity challenges.

	Contracts were renewed with major mining customers in Chile and new contracts were signed for sites owned by Antofagasta Minerals and Anglo American. Enaex was awarded 90% of the tons put out for bid. This year was key in defining Enaex's focus on a model based on continuous innovation.

	In Peru, the Company acquired an 80% interest in Chemtrade, a company through which it was awarded the ammonium nitrate supply contract for Minera Antamina. In Chile, new contracts were signed with the Collahuasi mines, increasing Enaex's domestic market share.

	The Company acquired 100% of IBQ Industrias Químicas (Britanite) and 91% of the Davey Bickford Group, a French world leader in manufacturing electronic detonators. In October, Enaex conducted its first bond issuance on the local market, for a total of UF 2.5 million.

	Enaex was listed on the Dow Jones Sustainability Index Chile (DJSI Chile) and the Chilean Federation of Industry (SOFOFA) bestowed us with one of its most important national accolades, naming Enaex Outstanding Company of the Year in 2016.

	Enaex worked with the Stanford Research Institution (SRI), ASI Robots, Tersainox, Thecne and SK Godelius to launch two new teleoperated robotics solutions for mining sites, RoboMiner® and Mine-iTruck®. The Company was again selected to be part of the Dow Jones Sustainability Index and named the mining industry’s Best Domestic Supplier on Phibrand’s 2017 Mining Suppliers Ranking. In the financial realm, Feller Rate upgraded the Company's national risk rating from AA- to AA with a stable outlook. At the international level, Enaex began new operations at Yamana Gold’s mines in Brazil and performed its first blasting service in the Peruvian market at Minera Constancia, a Hudbay copper mine.

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