The main purposes of its establishment are to maintain the prestige of the construction contractors, to promote mutual cooperation amongst contractors, to protect their rights and interests, and to strive for the improvement of construction-related legislations, construction economy policy and construction technology, thus to contribute towards sound progress and development of the nation's construction industry.

Research / Study on the laws, rules, regulations and systems pertaining to the construction industrial business and recommendation for improvement thereof to the government authorities concerned. Research / Study, guidance on the matters concerning the promotion of construction business, the rationalization of business management and the improvement of construction technology. Statistical survey on the construction industry Survey / Public announcement on labor wages and demand-supply of construction materials. Promotion of international cooperation and partnership with foreign contractors and international organization related to construction industry. Study / Survey on the construction industry-related legislation and systems in major foreign countries and collection / exchange of the overseas information and know-how on the construction industry. Education / Study for the promotion of the construction industry and the welfare for the member contractors Publication of the Daily Construction News, the Construction Industry(Monthly), and the Comprehensive Market Price Information(Monthly). Execution of projects commissioned by the government.

Appraisal and public notice of announcement of execution capacity and disposal of a report on the results of construction works and recommendation for improvement thereof to the government authorities concerned.

• existing licensed firms : public announcement shall be made on August 1st each year
• newly licensed firms : public announcement shall be made immediately upon the issue of ?license. (on the basis of Framework Act on the Construction Industry)

Mediation of disputes on construction subcontract.

• arbitrate any disputes that may arise between prime contractor and subcontractor (on the basis of Laws and Regulations concerning Fair Subcontract Transactions)
• 169 cases reported in 1997 : 105 cases successfully arbitrated, 62.1% success rate

Enactment and revision of standard for calculation of labor and work to be required for?construction performance.

• enactment, revision, interpretation and supply of standard for calculation of labor and work to??be required for construction performance.
• all other matters related to standard for calculation of labor and work to be required for construction performance. (on the basis of operation regulations regarding to construction technology development and management, etc)
• total of 93 articles in 1998 ( 58, 20, 15 in the field of civil engineering, building, equipment,?respectively) newly established and supplemented.

Comprehensive management of construction-related information and report and acceptance of the changed performance matters on the constructor

• deal with and register changed status on the constructors

Penalty System (Construction Technology Management Law)

• The Penalty System was enacted to prevent improper construction. This Association imposes penalty points to those construction firms found to have performed unreliably, and the points?are added up once every six-month period. Such data is supplied to clients as the credibility evaluation information of various construction firms. (on the basis of Construction Technology Management Law)

Public announcement of wage

• esearches the current wages being paid to various jobs related to construction industry
• the wages are calculated on the basis of a 8-hour work period
• public announcement is made on September 1st and December 31st every year respectively
• use the estimated construction fee index as the wage index after taking inflation into consideration (on the basis of regulation concerning government contract )

Issuance of various certificates

• issue necessary documents for bidding to members
• ssue certificates concerning members to general persons
• PQ evaluation document and all other certificates

Evaluation of results of construction works of constructors' own

• evaluates results of construction works of constructors’ own which the authorities concerned?cannot evaluate due to lack of detailed specification of construction cost. (on the basis of Framework Act on the Construction Industry)