| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:company
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:category
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:startup_accelerator
                                        
                                         
                                    
                                        
                                            gptkb:public_company
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:focus
                                    
                                 | 
                                
                                    
                                        
                                            
                                            decarbonizing cement production
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:foundedYear
                                    
                                 | 
                                
                                    
                                        
                                            
                                            2019
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:founder
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Ellen_Kullman
                                        
                                         
                                    
                                        
                                            gptkb:Cody_Finke
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:fundedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Breakthrough_Energy_Ventures
                                        
                                         
                                    
                                        
                                            gptkb:Ramez_Naam
                                        
                                         
                                    
                                        
                                            gptkb:DCVC
                                        
                                         
                                    
                                        
                                            gptkb:Amazon_Climate_Pledge_Fund
                                        
                                         
                                    
                                        
                                            gptkb:Collaborative_Fund
                                        
                                         
                                    
                                        
                                            gptkb:Elemental_Excelerator
                                        
                                         
                                    
                                        
                                            gptkb:Fifty_Years_VC
                                        
                                         
                                    
                                        
                                            gptkb:GigaFund
                                        
                                         
                                    
                                        
                                            gptkb:Lowercarbon_Capital
                                        
                                         
                                    
                                        
                                            gptkb:Chris_Sacca
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:headquartersLocation
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Emeryville,_California,_United_States
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:industry
                                    
                                 | 
                                
                                    
                                        
                                            
                                            clean technology
                                        
                                        
                                         
                                    
                                        
                                            
                                            cement production
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:mission
                                    
                                 | 
                                
                                    
                                        
                                            
                                            eliminate CO2 emissions from cement production
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:notableAchievement
                                    
                                 | 
                                
                                    
                                        
                                            
                                            developed process for carbon-negative Portland cement
                                        
                                        
                                         
                                    
                                        
                                            
                                            first company to receive EPA permit for carbon-negative cement plant in US
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:product
                                    
                                 | 
                                
                                    
                                        
                                            
                                            carbon-negative cement
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:technology
                                    
                                 | 
                                
                                    
                                        
                                            
                                            produces magnesium compounds as byproduct
                                        
                                        
                                         
                                    
                                        
                                            
                                            uses calcium silicate rock instead of limestone
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:website
                                    
                                 | 
                                
                                    
                                        
                                            
                                            https://www.brimstone.com/
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Breakthrough_Energy_Ventures
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            5
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Brimstone Energy
                                        
                                        
                                         
                                    
                                 |