. Nature of operations of the Group The Group has principally engage in distribution of product and equipment, design, assembly and installation, and maintenance service of pure water treatment system
distribution of product and equipment, design, assembly and installation, and maintenance service of pure water treatment system; including operate clinical business which dialysis services for kidney patients
from sales and service 1,190.0 1,640.7 1,216.8 (450.7) (27.5) (26.8) (2.2) Rental income from equipment for lease 80.6 79.9 54.5 0.7 0.9 26.1 47.9 Gain on sales of investment - - 108.6 - - (108.6) (100.0
sound business control conduct; (3) Being able to maintain capital funds and set aside reserve capital in compliance with law establishing such legal entity or law controlling business undertaking of such
inappropriateness regarding the sound business control conduct; (3) Being able to maintain capital funds and set aside reserve capital in compliance with law establishing such legal entity or law controlling business
) mainly due to reduction in equipment rental, as in 2017 SAAM Group had additional expense for equipment rental arising from the delay in shipment of inverters for SAAM-SP1. SAAM Energy Development Public
came from waste of raw materials increased 4.48 million Baht, dividend income increased 1.17 million Baht, rental income decreased 1.43 million Baht, gains on sales of machinery and equipment decreased
the large-scale project with revenue from only equipment sales, and the gross profit margin in other projects were not different. As the result, the change in gross profit margin was very low during the