Emissions regulations in many countries around the world are lowering the levels of particulate emissions from coal-fired power plants. In the United States these are being driven by the MATS (Mercury and Air Toxic Standards). In Chile the pertinent regulation is Supreme Decree No. 13 "Emission Standard for Thermoelectric Power Plants." Regarding particulate matter (PM) Supreme Decree No. 13 sets the emission standard for existing solid-fueled (i.e. coal/coke) plants to 50 mg/Nm3 and for new solid-fueled power plants to 30 mg/Nm3. AES Gener is the second largest generation company in Chile in terms of installed capacity, with 4,810 MW in operation by December 2012, including affiliates and subsidiaries abroad. It provides energy solutions and infrastructure in Chile, Argentina and Colombia. AES Gener is in the process of upgrading systems at its coal-fired power plants to meet the emission standards called for in Chile. Some of these upgrades involve the installation of new particulate control and FGD systems. While these new control systems are being engineered and constructed AES Gener is improving the performance of some of their existing ESP's to achieve limits of particulate emissions. Two of the Units being upgraded are Norgener 1 and 2 located in Tocopilla in the Antofagasta Region, in the north of Chile. AES contracted with P. Farber & Associates, LLC to explore the cost effective options for reducing PM emissions in the interim until the new dry FGD systems go into operation. It was determined that an additive, applied to the coal fed to the boilers, was an approach that should be investigated. AES Gener is carrying out a test program at Norgener to determine the effect of the fuel additive on ESP performance and on boiler operation. This testing program will look at several levels of fuel additive to the coal and the ESP performance at these addition levels. The ESP performance with the additive will be compared to the baseline (no additive) performance. This paper will report on the results of the field testing program with the fuel additive and the plans to implement the fuel additive at full scale on the Norgener Units 1 and 2.