PMA vs PPIH Comparison

PMA Graphene Technology Group Inc, formerly Ming Shing Group Holdings Ltd, is a holding company engaged in wet trades works, including plastering, tile laying, brick laying, floor screeding and marble works. To a much lesser extent, it provides small-scale fitting out services, such as renovation works, and engages in trading of wines and spirits. Through its subsidiaries, it is mainly engaged in private sector projects in Hong Kong, involving private residential and commercial developments, while public sector projects mainly involve public residential developments, infrastructure and public facilities developments. The Company operates through two segments: Provision of Wet Trades Works and Trading of Wines and Spirits, with Trading of Wines and Spirits generating the maximum revenue.

Perma-Pipe International Holdings Inc is engaged in the manufacture and sale of products in Piping Systems. The company engineers, designs, manufactures, and sells specialty piping systems and leak detection systems. Specialty piping systems of the company include insulated and jacketed district heating and cooling piping systems for efficient energy distribution from central energy plants to multiple locations, primary and secondary containment piping systems for transporting chemicals, hazardous fluids, and petroleum products, the coating and insulation of oil and gas gathering and transmission pipelines, and liquid and powder based anti-corrosion coatings applied both to the external and internal surfaces of steel pipe, including shapes such as bends, reducers, tees, and other fittings.