INDIVIDUAL investors will be admitted to the Central Clearing and Settlement System (CCASS) by the end of the year, according to the chairman of the Hongkong Securities Clearing Company, Mr Thomas Chen Tseng-tao. The company envisages the creation of two categories of investor participants: unrestricted and restricted. ''Unrestricted participants will be required to meet stringent entry and continuing criteria, especially in financial and operational resources,'' Mr Chen said. ''They will have access to all CCASS services, including clearing, securities and money settlement, depository and nominee. ''The rights of unrestricted participant investors will be similar to those of custodian participants.'' He said a limited number of investors would be admitted as restricted participants and be provided with a range of CCASS services. ''They will face less stringent admission criteria,'' he said. ''As currently envisaged, restricted participants will open stock accounts with the company and enjoy the safekeeping and nominee services of CCASS. ''Movement of shares between restricted investor participants and their brokers or custodians will be effected by participants completing input instruction forms for processing by the company's Service Bureau.''