The national official language of Thailand is called "Phasa Thai" (ภาษา ไทย) which means the "Language of Thailand". It is a part of the Tai/Daic language family, whose origin is uncertain. Linguists acknowledged it as monosyllabic and tonal language. The spoken language is conceived to originate in the area which is now the border between Vietnam and China, an idea which provides clues to the origin of the Thai people, an area of continued scholarly debate. Linguistically, the language is related to languages spoken in eastern Burma (Myanmar), northern Vietnam, Yunnan, and Laos.

Phasa Thai is the dialect spoken by approximately 60 million people in provinces situated in Central Thailand including Bangkok, Ayuthaya, Suphanburi, Kanchanaburi, Samut Songkhram and Hua Hin. Apart from the national official language, there are roughly 12 dialects used in the Northern and Southern parts of Thailand which are both comprehensible to each other and the Official Thai language. The Northern Thai language is related to Standard Thai with Lao influence. The spoken Southern Thai language (spoken from Prachuap Khiri Khan province to the Malaysian border) are sometimes intermixed with Patani Malay and may include local vocabularies, as these regions were once ruled by Malay Sultanates.

In dealing with the Thai people, one must understand the language and be able to communicate to them. The Thai society demands several registers of speech depending on who you are talking to. Considering this will also lead to a better understanding of the people you are dealing with. As the economy of Thailand flourishes, tourists and businessmen alike are drawn to the country.

Generally, the economy of Thailand relied upon the export of agricultural commodities, jewelry and electrical appliances, computers and parts, plastics, automobiles and automotive parts, tungsten and tin. In 2010, the country has reached GDP growth of 7.8%, with GDP of 9.5 trillion Baht, or US$584 billion (PPP) hitting the 24th spot as the largest economy in the world. Despite the last years’ severe flooding, Thailand’s economy has unexpectedly expanded to 11 per cent in the first quarter from the previous three months. The NESDB (National Economic and Social Development Board of Thailand) said the economy was expected to grow 5.5.-6.5 per cent this year because factories resumed production and manufacturers are boosting output. Company like Honda Motor Co. said last March 31 its’ factory in Ayutthaya province will run at full capacity to meet the rising demand of the consumer market.

Considering at how the country was able to manage its’ economy with the ill effects that the natural calamity brought, this leaves a good impression and encourages more foreign companies to invest in the country. More and more language translators and interpreters are needed in business transactions to have a thorough understanding on their existing agreements and policies. Furthermore, relationships are of great value by Thai people and so with the aid of interpretation and translation, this will help strengthen the business relationships achieving harmony and effectiveness.

Businesses who wish to export or invest in Thailand should translate all the company information and marketing collateral into Thai language.