ClearSign Technologies Corporation provided updates on its operations in China and the demonstration project at the World Oil site in California. With the continuing outbreak of the Corona virus, the Company anticipates possible delays to the two boiler demonstration projects in China. While at present the Company anticipates that both projects will be completed this year, the recent extension of the Chinese New Year holiday period and the travel restrictions on the local work force are impacting the project schedules. To date, based on ClearSign's measurements, the modifications made this past year to the water tube boiler project have performed well, achieving up to 95% of the design capacity with NOx levels within the aggressive project specification. The burner hardware is currently undergoing an engineering modification to prepare it for final automation, formal testing and ongoing operation. This will resume as soon as the situation in China allows. The testing of the fire tube boiler has been relocated to a different site. The new site is not restricted by the schedule of the heating season, and will allow for testing after the heating season is over, if required. The testing will also now take place in a boiler that is not in use for facility heating, which allows more flexibility in the timing of the installation, optimization and testing. The initial test firing of the ClearSign burners at the World Oil site in California was undertaken this past week. The burners demonstrated an operating range from below minimum to exceeding their design firing capacity while consistently limiting NOx emissions to less that 4ppm based on ClearSign measurements. In this initial testing some interaction was experienced between the burners creating problematic flame behavior that ultimately lead to a joint decision between World Oil and ClearSign to remove the burners so that the anomaly could be addressed without disrupting the production of the refinery through the peak mid-year production season. The purpose of the project with World Oil is to demonstrate ClearSign Core™ process burner technology as a Best Available Control Technology (BACT) candidate to achieve sub 5 ppm NOx emissions levels in refinery process heaters and other types of fired equipment. The project involves a retrofit installation of five Plug & Play™ burners on a process heater within the California refinery as a demonstration of the technology for the South Coast Air Quality Management District and refiner World Oil. Based on preliminary estimates, if successful, the project is expected to result in a reduction of over 15 tons of NOx emissions compared to current operations, without the utilization of catalysts, chemicals, utility consumption or other inefficient requirements of established technologies.