We review a magnetic adsorbent functionalized with thiol groups (patent pending) that exhibits over 99% removal of gaseous elemental mercury in low temperature, inert and air gas streams and also matches baseline, halogen-doped powdered activated carbon in actual flue gas streams at 150°C (PRB coal) even though it has lower surface area and larger adsorbent size. This adsorbent also binds Hg(2+). If this collectable adsorbent is used prior to the FGD we expect even higher mercury removal than at the ESP. We discuss also two companion thiol-based SAMMS adsorbents available for fluids in both magnetic (THFL-01) and non-magnetic (THSL-01) form. The latter has achieved single digit ppt levels of mercury in industrial and utility aqueous streams over a broad range of pH (3-12) and in the presence of organic fluids and many anions and cations that compromise most adsorbents. The adsorbents also bind copper, arsenite and selenite. They appear highly suited for the challenges of the coal-fired flue gas stream, including the FGD. Finally we discuss several companion adsorbents under final development that have good activity to adsorb copper, arsenate and selenate, common toxic impurities in the FGD. One form of this adsorbent has high capacity for carbon dioxide and may have a place in the sequestering and fixing this gas.