CONFIDENTIAL 1 Presentation 2015

CONFIDENTIAL 2 About SIGMA OEM SIGMA OEM has a long history and deep expertise in all facets of the castings business. For over 30 years, we have been sourcing and procuring product from overseas for use throughout North America. SIGMA OEM can manufacture pump casings, valve bodies, brake calipers, impellers, counterweights, H Frames—to name but a few—and we can produce virtually any casting item required by our customers We utilize large-scale manufacturing facilities in emerging markets, and we have qualified SIGMA OEM personnel on the ground at each factory. Our established infrastructure means that customers benefit from excellent supplier relations, reliable logistics, and onsite responsiveness. The scale of our operation enables us to service small, medium, and large orders efficiently and cost-effectively. Our supplier relationships are based on trust and respect earned over three productive decades. Customers benefit from our long history in OEM; we know the people, the policies, and the protocols. SIGMA OEM offers solutions that enable our customers to reduce the total cost of ownership (TCO). SIGMA OEM’s name has become synonymous with quality. Our Quality Assurance Experts start by thoroughly auditing each factory before approving it as a SIGMA OEM manufacturer. They examine every facet of the operation from the procurement of raw materials to the maintenance of equipment through the manufacturing process. SIGMA OEM stations engineers at all factories to provide continuous technical support and frequent quality assurance inspections. Finally, SIGMA OEM conducts Incoming Quality Control tests, during which random samples of inventory are shipped from factories around the world to our company headquarters for inspection. Our Quality Standards are the highest in the industry because we demand it. Quality doesn’t just happen, it requires constant, deliberate, focused vigilance. And that is what SIGMA OEM promises, each and every day.

CONFIDENTIAL 3 Content Slide 1 Began 1985 Second largest supplier of AWWA fittings and accessories – 14 warehouse facilities in NA Consistent growth Wide range of products beyond fittings Wide range of AWWA fittings and accessories Key national supplier 2 types of pipe restraints: PV-LOK and ONE-LOK Consistent customer service

CONFIDENTIAL 4 Content Slide 2 Began 1985 Second largest supplier of AWWA fittings and accessories – 14 warehouse facilities in NA Consistent growth Wide range of products beyond fittings Wide range of AWWA fittings and accessories Key national supplier 2 types of pipe restraints: PV-LOK and ONE-LOK Consistent customer service

CONFIDENTIAL 5 About SIGMA Began 1985 Second largest supplier of AWWA fittings and accessories – 14 warehouse facilities in NA Consistent growth Wide range of products beyond fittings Wide range of AWWA fittings and accessories Key national supplier 2 types of pipe restraints: PV-LOK and ONE-LOK Consistent customer service

CONFIDENTIAL 6 Product Description SIGMA Corporation’s SIGMAFLANGE™ Model SFA is designed to connect plain-end ductile iron or PVC pressure pipe to a flanged fitting, pipe, valve and other flanged appurtenances. An oversized ductile iron mechanical joint x flanged sleeve provides proper sealing of the adjacent flange outlet using an O-ring gasket while accommodating necessary pipe end restraint to the mechanical outlet using SIGMA ONE-LOK™ wedge action restraining glands, either model SLDE for ductile iron or SLCE for PVC pipes.

CONFIDENTIAL 7 Features & Benefits Accommodates misalignment of pipe Provides same pressure rating as pipe with 2:1 safety factor No special tools High strength ductile iron ASTM standards

CONFIDENTIAL 8 Sample Bar Chart $ Millions

CONFIDENTIAL 9 Sample Pie Chart