| gptkb:Pine_Bend_Refinery | asphalt | 
                        
                            
                                | gptkb:Dominion_Coal_Company | gptkb:coal | 
                        
                            
                                | gptkb:Canadian_Oil_Sands_Limited | synthetic crude oil | 
                        
                            
                                | gptkb:Pan_American_Silver_Corp. | silver | 
                        
                            
                                | gptkb:Pine_Bend_Refinery | propane | 
                        
                            
                                | gptkb:MP_Materials | rare earth elements | 
                        
                            
                                | gptkb:Centamin_plc | gptkb:gold | 
                        
                            
                                | gptkb:Alumina_Limited | alumina | 
                        
                            
                                | gptkb:Pan_American_Silver_Corp. | gptkb:gold | 
                        
                            
                                | gptkb:MP_Materials | neodymium-praseodymium oxide | 
                        
                            
                                | gptkb:Pan_American_Silver_Corp. | zinc | 
                        
                            
                                | gptkb:Rosemont_Copper_Mine | copper | 
                        
                            
                                | gptkb:Pine_Bend_Refinery | gptkb:gasoline | 
                        
                            
                                | gptkb:Pan_American_Silver_Corp. | copper | 
                        
                            
                                | gptkb:Alumina_Limited | bauxite | 
                        
                            
                                | gptkb:Pan_American_Silver_Corp. | gptkb:lead |