Molecular engineering 

Process engineering Focuses on the design 

optimization of chemical processes

Petroleum refinery engineering 

Plastics engineering

the design of the production process of plastics products

microorganisms 

mammalian cells 

plant cells and tissue

metabolic engineering techniques 

design of specific biocatalysts

specific reactor operations

Mining engineering 

transport engineering 

Traffic engineering

Highway engineering

construction and design of highways 

Railway systems engineering

Water resources engineering 

development and management of water resources