TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Properties: The graphite agglomerates have a tap density of 0.08-1.0 g/cm3, preferably 0.12-0.3 g/cm3. The ground expanded graphite particles have mean particle size (d50) of 5-500 mu m, preferably 30-100 mu m. At least 10 wt.%, preferably at 40 wt.% of the agglomerates remain above 250 mu m mesh sieve after soft vibrating sieving. The graphite agglomerates have BET specific surface area of 8-200 m2/g, preferably 15-50 m2/g. The maximum output of the ground expanded graphite agglomerates in Brabender FlexWall DDW-MD5-FW40 Plus-50 gravimetric dosimeter is 6 kg/hour or more at a tap density of 0.125 g/cm3 and 12 kg/hour or more at a tap density of 0.25 g/cm3. Preferred Composition: The agglomerates comprise ground expanded graphite and another component in the weight ratio of 95:5-5:95. The other component is natural graphite, synthetic graphite, carbon black, boron nitride, aluminum nitride, carbon fibers, carbon nanofibers, carbon nanotubes, graphene, coke, silver powders, copper powders, aluminum oxide powders, steel fibers, polyacrylonitrile, graphite fibers, silicon carbide and/or graphene. The expanded graphite is made by intercalating a graphite material, and thermally expanding the graphite material to form an expanded graphite material. Preferred Process: The compacting step comprises compacting the ground expanded graphite particles together with another component in particulate form to yield ground expanded graphite agglomerates. The agglomeration is carried out using a roller compactor, a flat die pelletizer, a pin mixer pelletizer or a rotary drum pelletizer, a fluidized bed process, a spray dryer process or a fluidized bed spray dryer process. The expanded graphite material is further ground to form ground expanded graphite particles.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: A polymer composite is prepared with the ground expanded graphite and conductive polymer. The conductive polymer is polymer matrix comprising polyolefin, polyamide, polyester, acrylic or acetate, polyimide, thio/ether polymer, elastomer, thermoplastic elastomer, thermosetting resins and/or their copolymers.