CMES has been unique among all NGOs working in Bangladesh in incorporating research on technology-developing processes and devices within its efforts. Adaptive research and piloting are undertaken so that useful new technology can be adapted and old ones can be improved for the income generating practices by the students and the graduates.

The following trades are currently being practiced:

1. Mushroom culture and spawn production
2. Carpentry
3. Total Garments (along with dying, block batic printing etc.)
4. Honey bee rearing 
5. Vermicompost (earth warm composting)
6. Metal work (Welding & Workshop)
7. Masonry
8. Poultry (Broiler and Layer)
9. Soap Making
10. Candle Making
11. Book binding
12. Solar system installation and accessories making
13. Medicinal plants (Bashok Leaf, Stevia, Aloe Vera )
14. Integrated Pest Management (IPM)
15. Bee Colony Making
16. Spirulina culture
17. Vegetable Dye
18. Electrical & Electronics
19. Mobile Phone Servicing
20. Television
21. Motor Cycle Repairing

mushroom in all the units. There are six Air Conditioned labs and ten mini labs for producing mother spawn and commercial spawn our target group in inexpensive manner. Pot in pot's technology is the cheapest and easiest one technology of CMES, which is more effective to produce mother spawn.  By using pot in pot technology in the rural areas where electricity is not available i.e. extreme load shedding there we can produce and mother spawn tissue culture through without Air Conditioned lab.“Sey-Wo-Se" powder mushroom and solar dried mushroom are packaged and marketed by CMES units in district and divisional market. Now, Straw Mushroom is being cultivated in all units with low cost substrate prepared from straw. we are attaining substantial volume of production at a comparatively low cost.

2.Honey bee rearing: Artificial bee keeping also called apiculture which is done by maintaining honeybee colonies in boxes, to collect honey. Honey is a sweet food made by honeybees using nectar from flowers; Bee keeping practices encourage overproduction of honey so that the excess can be taken without endangering the bee colony. Though technology is comparatively rare practice in Bangladesh, CMES has started scientific apiculture at its units. Honey is used in various foods and beverage as sweetener and flavoring. It also has a role in religion and symbolism. At present, the graduates of CMES are successfully producing high quality honey.  Flavors of honey vary based on the nectar source. The plants that are used by self-

Soil is the main supplier of plant nutrients. Nutrient contents of soil become unbalanced rapidly due to continuous cropping. A limited number of nutrients are applied in excessive quantity as chemical fertilizers to get rapid return or high yield which creates toxicity for microbial community of the soil. As a result, continuous changes take place in the soil fertility condition due to nutrient deficit and increasing toxicity status. In Bangladesh, most of the soils (other than peat soil) have less than 1% organic matter. A good soil should have 2.5% - 5% organic matter which influences the physical, chemical and biological properties of soil. Because, organic matter improves soil structure, water holding capacity and aeration including enhancing droughts resistance capacity.

Vermicompost serves food and energy for beneficial organisms like earthworms, Rhizobium, Azolobacteretc. In Bangladesh the major source of organic matter includes animal dung, urine, crop residues, household wastes etc. Converting these organic wastes into compost fertilizer using earthworm is called vermicomposting.

Vermicompost plays a significant role in maintaining and enhancing the quality of soil and conserving resources by making crop production through sustainable agriculture. It has a good potential for rural and urban areas, as it is an eco-friendly organic fertilizer.

Vermicompost is safe to use for field crops, vegetable crops, tuber crops, spices, pulses oil, fruits and flowers. CMES has successfully disseminated the production of vermicompost in its units and among its graduates. A huge number of graduates are successfully producing and marketing vermicompost in their locality. CMES organizes Farmer's Conventions to make farmers aware about vermicompost and its benefits.

CMES is supplying high value vermicompost to local and national markets maintaining its quality and volume. Specially, its role in reaching the rural farmers and other users of the fertilizer through its Sey-wo-se business is really praise-worthy. Certification of vermicompost quality from Department of Agriculture Extension (DAE) under Ministry of Agriculture (MoA) was taken through taking part in several lab tests and field tests with crop yields in their stations  which is a major achievement of Technology Department in 2012. Our supplied samples complied with all BARC criteria including the nutrient content. However, ensuring the quality and quantity of the product would be a great challenge by using proper technologies and raw markets. One important thing is providing training to the users of vermicompost on its application procedure where CMES can work in future.

CMES laboratory for Vermicompost testing
In 2012, a well-equipped laboratory was  established at Suruj unit, Tangail with capacity of testing nutrient content following standard set by Bangladesh Agricultural Research Council (BARC).Measurement of physical and chemical parameters of the vermicompost are done by a chemist at this laboratory who works dedicatedly for the laboratory. This laboratory is playing a vital role in quality of the bio-fertilizer but testing samples of ABS, RTC of different units are helping to improve the. 

5. Carpentry: 
This has been one of the most successful skill training in CMES with a lot of demand all over the country. In 2012, we emphasized on more graduate income through inclusion, expansion and production of quality carpentry products such as cricket bat, new brands of folding furniture etc. In 2012 five more units have been brought under carpentry trade. As a result of those activities, there are steady works and good income for our graduates.

To develop the product quality, we organized training on measurement, specification, finishing etc for the graduates. Finding out the increasing market demands of plywood products, we are now producing integrated furniture made of wood, plywood and other raw materials.

8.Spirulina: In many developed counties microscopic algae spirulina is used to produce protein rich food supplements. Spirulina, a free floating filamentous cyanobacteria naturally occurs in the tropical & subtropical water. Spirulina is highly nutritious because usually it contains high amount of protein (containing between 55% and 77% of dry weight with all essential amino acids), vitamin B1 (thiamine) B2 (riboflavin), B3 (nicotinamide), B6 (Pyridoxine), B9 (folic acid), Vitamin C, Vitamin D, and Vitamin E.

After finishing the R&D (Research & Development) it is going to make a large-scale production of spirulina in CMES Jaldhaka, Nilphamari unit and we are working to

The regular sizes of SHS are 30 Wp to 85 Wp. Small Solar Home System (SSHS) is referring to 5 Wp -25 Wp systems that are being popular among the marginalized rural people. 10 Wp & 20 Wp systems are already being installed commercially to the field and we are also trying to implement and popularize very low cost 5 Wp systems for the rural households base on new LED technology.

CMES established Solar Equipments’ Production Unit to take up adaptive research on accessories assembling to produce Tube Light Ballasts, Charge Controllers, LED Bulbs and invertors etc. The developed components and systems have been put into direct. Use in CMES’s solar electrification marketing project in rural target areas.

10. Fuel Saving Device: Improved Cooking Stove (ICS) 
CMES has a programme for extending the use of Improved Cooking Stoves in the target group’s homes. To make this a success, it had to take up R&D activities both in the technology and the usage of the stoves being recommended by the research laboratories.

CMES's own contribution in this area is well recognized. It developed the Fuel­less 'Um Chula' (the name coined by CMES, meaning warmth)- a stove designed in hay-box principle- capable of saving almost 75% of the fuel. This has been' published in IT Journal, London, and extended through the Basic School System.   

11. Water-Purification By Solar Energy And By Chlorination 
CMES R&D had given emphasis on renewable energy sources including solar cookers and solar water heaters for decontamination of water through pasteurization. Later, CMES developed transparent plastic bottle based solar water purifier and has made it popular in certain quarters such as with the boat flotilla of the water gypsies (bede).

In 2012, CMES piloted a low cost chlorination of drinking water programme using solar electricity, a method developed by a Swiss Company Antenna WATA.

CMES implemented this business model of safe water supply in an extension period for the project during