| 6. | REVENUE |
Revenue from telecommunications services are subject to value-added tax (“VAT”) and VAT rates applicable to various telecommunications services. The VAT rate for basic telecommunications services is 11%; the VAT rate for value-added telecommunications services is 6% and the VAT rate for sales of telecommunications products remains at 17%. Basic telecommunications services include business activities for the provision of voice services, and leased lines and associated services etc. Value-added telecommunications services include business activities for the provision of Short Message Service and Multimedia Message Service, broadband and mobile data services, and data and internet application services etc. VAT is excluded from the revenue.
| The | major components of revenue are as follows: |
| 2015 | 2016 | 2017 | ||||||||||
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Voice usage and monthly fees |
57,030 | 47,500 | 39,154 | |||||||||
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Broadband and mobile data services |
105,634 | 118,209 | 137,133 | |||||||||
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Data and internet application services |
12,936 | 17,782 | 20,074 | |||||||||
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Other value-added services |
27,411 | 24,187 | 22,793 | |||||||||
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Interconnection fees |
15,514 | 14,748 | 14,233 | |||||||||
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Leased lines and associated services |
11,484 | 11,618 | 12,519 | |||||||||
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Other services |
2,967 | 3,989 | 3,109 | |||||||||
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Total service revenue |
232,976 | 238,033 | 249,015 | |||||||||
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Sales of telecommunications products |
44,073 | 36,164 | 25,814 | |||||||||
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| 277,049 | 274,197 | 274,829 | ||||||||||
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