Exhibit B:

MERCURY WASTE SOLUTIONS

ACCEPTANCE GUIDELINES

This information is being provided to assist you in determining which mercury-bearing materials are acceptable for processing and mercury recovery by Mercury Waste Solutions, Inc. (MWSI). Materials and compounds accepted for processing may be subject to regulations as hazardous wastes. Other non-mercury materials are also accepted for recycling.

I. Mercury Waste Solutions is permitted to accept the following materials:

A. Acceptable Mercury Wastes and Codes D001 as an oxidizer, D002, D004-D011, U151, K071, K106 & P092 Universal Waste batteries, lamps and thermostats

B. Other Acceptable Materials Lighting Ballasts (PCB and non-PCB) Batteries (alkaline, lithium, and nickel cadmium) Obsolete Computer Equipment

II. Mercury Waste Solutions is NOT permitted to accept the following materials:

w Any F, K, P or U-listed wastes (other than U151 and K106) w Radioactive materials w Reactive materials (D003) (lithium batteries are accepted under Universal Waste Rule) w Regulated medical wastes w Dioxins w Pesticides and herbicides MERCURY WASTE SOLUTIONS

ACCEPTABLE MATERIALS

ACTIVATED CARBON/CHARCOAL BATTERIES Alkaline (with/without mercury - Universal Waste) A to N Batteries (Coast Guard, gel cell batteries) Lithium (Universal Waste) Mercuric Oxide (Universal Waste) Nickel Cadmium (Universal Waste) Zinc Air (with/ without mercury - Universal Waste) Zinc Carbon (with/without mercury - Universal Waste) CHLOR ALKALI PRODUCTION DEBRIS METALLIC MERCURY (pure/impure) CHLOR ALKALI PRODUCTION RESIDUE METAL SWITCHES CLEANUP KITS FOR MERCURY SPILLS MINING OPERATIONS DEBRIS COD TEST SOLUTIONS MINING OPERATIONS RESIDUES CONSTRUCTION/DEMOLITION DEBRIS PC BOARDS DEBRIS CONTAMINATED WITH MERCURY PERSONAL PROTECTIVE EQUIPMENT DENTAL AMALGAM PIPING CONTAMINATED WITH MERCURY DEVICES CONTAINING MERCURY PHOSPHOR POWDERS FLOORING CONTAMINATED WITH MERCURY PRESSURE REGULATORS (containing Mercury) FLUORESCENT LAMPS(whole, broken, crushed) RECTIFIERS GASTROINTESTINAL TUBES/DILATORS SILVER AMALGAM GLASS SWITCHES SILVER OXIDE FLOOR SWEEPINGS GLASS CONTAMINATED WITH MERCURY SILVER DUST IGNITRON TUBES SODIUM AMALGAM LIGHTING/LIGHTING WASTES SOILS CONTAMINATED WITH MERCURY MANOMETERS CONTAINING MERCURY SWITCHES (containing Mercury) MERCURIC OXIDE POWDER/PELLETS TELEPHONE SWITCHES MERCURIC OXIDE FLOOR SWEEPINGS THERMOCOUPLES MERCURIC OXIDE BATTERIES THERMOMETERS (containing Mercury) MERCURY COMPOUNDS THERMOSTATS (containing Mercury) MERCURY CONTAMINATED MATERIALS VAPOR LAMPS (containing Mercury) MERCURY CONTAMINATED METALS ZINC AMALGAM MERCURY SOLUTIONS MERCURY RELAYS MERCURY COMPOUNDS AND SOLUTIONS

MERCURY COMPOUNDS 4-aminophenylmercuric acetate mercury acetate) chloranilic acid (mercury II) mercurous bromide (mercury I bromide) dibenzyl mercury mercurous carbonate ethyl mercuric acetate mercurous chloride (calomel, mercury I ethyl mercuric phosphate chloride, mercury monochloride) ethyl mercury (p-toluene suloanilide) mercurous fluoride fluorescein mercuric acetate mercurous iodide harris alum hematoxylin mercurous gluconate (mercury I gluconate) mercuric acetate (bisacetyloxy mercury, mercurous nitrate (mercury I nitrate) diacetoxymercury, mercury diactate, mercurous nitrate mercury II acetate) mercurous oxide (mercury I oxide) mercuric benzene sulfonic acid mercurous sulfate (mercury I sulfate) mercuric benzoate (mercury II benzoate) mercury phosphate mercuric bromate mercury monohlycinate mercuric bromide (mercury II bromide) mercury sulfide mercuric carbonate mercury tetravanadate mercuric chlorate mercury thiocyanate mercuric chloride (corrosive sublimate, mercury trifluoracetatel bichloride of mercury, merthiolate solution (thimersol, mercuric cyclohexane butyrate thiomersalate, SET, elicide, merfamin, mercuric dinapthylmethane disulphonate o-ethylmercurithio benzoic acid, mercuric fluorate sodium salt) mercuric iodate methoxy ethyl mercuric acetate mercuric iodide N-phenylmercuriethylene diamine mercuric isocyanate p-(acetoxymercuric) aniline mercuric lactate (mercury II lactate) p-hydroxy mercuricbenzoate mercuric nitrate (mercury II nitrate, phenylmercuric acetate mercuric oleate (mercury oleate) phenylmercuric benzoate mercuric oxide (red oxide of mercury, yellow phenylmercuric bromide oxide of mercury, mercury II oxide) phenylmercuric chloride mercuric oxybromide phenylmercuric dimethylothiocarbamate mercuric oxychloride phenylmercuric dodecyl succinate mercuric oxyfluoride phenylmercuric hydroxide mercuric oxyiodide phenylmercuric iodide mercuric phenyl mercaptide phenylmercuric nitrate mercuric potassium iodide phenylmercuric oxalate mercuric salicylate phenylmercuric oxide mercuric succinimide phenylmrcury phosphate mercuric sulfate (mercury II, sulfate, mercury pyridyl mercuric acetate persulfate, mercury bisulfate) sodium ethymercurithiosalicylate mercuric sulfide mercuric thiocyanate MERCURY SOLUTIONS mercurol (mercury nucleate) acetates Nessler’s Reagent mercurophen bromides nitrates mercurophylline (mercupurin, mercuzanthin) carbonates nitric acid containing mercury mercurous acetate (mercury monoacetate, chlorides nitrites COD test solutions oxalates