Since 1973 Has established Diamond Brand Co.,Ltd. and factory at Poochao Saming Phrai rd., Samutprakarn province, which is the company that mainly produce the products of aluminum container and Thai painting aluminum ware, which are distributed both domestically and abroad.

Since 1979 The company has increased another line of kitchenware product, stainless kitchenware, for exporting under "Diamond Brand" like Stock pot and Mixing bowl.

Since 1981 "Diamond Brand" company has established a new factory for producing one more line of kitchenware product, that is stainless sink, under "Diamond Brand" for distributing within local and neighbor market.

Since 1984 Comapany has started to produce stainless water tank and introduced this product line and initially pushed it into the market as the first one of Thailand un "Diamond Brand", which has been gaining a great acceptance from customer until now. There are more than 20 size of this kind of product for selection and has a maximum volume up to 10,000 litre. Moreover, it is the product that is certified by Thai Industrial Standards (TIS) by using a great quality of stainless which is a kind of material that is stylish and has a high level of corrosive resistance.

Since 1995 "Diamond Brand" company has increase a new product into the line of environmental preserving product that is water tank, sewage treatment tank, and grease trap tank, hich is produced from polymer plastic material like polyethylene under the brand of "Green Tree".

Since 1997 Company has introduced the new product line that is household appliances, which made from another kind of stainless material, that is kitchen cupboard under the brand of "Lifestyle". This is line of product has a various designs for selection both in standard sized made-by-order. Moreover, it also has unique specification like durability which is worth to use, ability to add and expand as desired, money save and worth to invest.

Since 2000 Company has extended the sales and production base to several regions of country by establishing Phattara Udon Co.,Ltd. in Chiang Mai, which is assumed all responsibilities within Northern region; Phattara Bhurapar Co.,Ltd. in Nakorn Ratchasrima, which is assumed all responsibilities within Isan region; and Phattara Taksin Co.,Ltd. in Had Yai district, Songkhla, which is assumed all responsibilities within Southern region.

Since 2003 Company has extended the scope of work into the plastic-made product line such as PVC door and sash, ABS kitchen cupboard, and ABS sink door frame, under "Diamond Brand".

Since 2004 Company has developed a higher quality of polyethylene water tank product line by starting to produce and distribute water from the PE compound material under the name of "Elixir", which is developed by SCG Chemical in the family of The Siam Cement Group, which has distinctive specifications like durability, natural liked stylish design, and opacity that prevent the growing of algae.

Since 2009 "Diamond Brand" company has developed new product line, industrial kitchenware for heavy duty like the kitchenware used in restaurant, canteen, and hospital, under "DKS" brand, which is consisted of set of stainless kitchenware, every kinds of kitchen used tools, as well as cooler and several kinds of accessories.