History of CCASS shareholding
Participant: CHANGJIANG SECURITIES BROKERAGE (HK) LTD
Holdings history
| Date | Trade date | Closing price | Holdings | Change | % of o/s | Value (HK$) |
|---|---|---|---|---|---|---|
| 2025-10-14 | 2025-10-10 | 2.110 | 68,600 | +0 | 0.00% | 144,746 |
| 2025-10-13 | 2025-10-09 | 2.260 | 68,600 | +0 | 0.00% | 155,036 |
| 2025-10-10 | 2025-10-08 | 2.380 | 68,600 | +0 | 0.00% | 163,268 |
| 2025-10-09 | 2025-10-06 | 2.140 | 68,600 | +0 | 0.00% | 146,804 |
| 2025-10-08 | 2025-10-03 | 2.060 | 68,600 | +0 | 0.00% | 141,316 |
| 2025-10-06 | 2025-10-02 | 1.960 | 68,600 | +0 | 0.00% | 134,456 |
| 2025-10-03 | 2025-09-30 | 2.010 | 68,600 | +0 | 0.00% | 137,886 |
| 2025-10-02 | 2025-09-29 | 2.000 | 68,600 | +0 | 0.00% | 137,200 |
| 2025-09-30 | 2025-09-26 | 1.960 | 68,600 | +0 | 0.00% | 134,456 |
| 2025-09-29 | 2025-09-25 | 1.950 | 68,600 | +0 | 0.00% | 133,770 |
| 2025-09-26 | 2025-09-24 | 1.990 | 68,600 | +0 | 0.00% | 136,514 |
| 2025-09-25 | 2025-09-23 | 1.990 | 68,600 | +0 | 0.00% | 136,514 |
| 2025-09-24 | 2025-09-22 | 2.020 | 68,600 | +40,000 | 0.00% | 138,572 |
| 2025-09-11 | 2025-09-09 | 2.110 | 28,600 | -48,000 | 0.00% | 60,346 |
| 2023-12-20 | 2023-12-18 | 0.511 | 76,600 | +37,640 | 0.00% | 39,157 |
| 2023-03-14 | 2023-03-10 | 0.492 | 38,960 | -154,621 | 0.01% | 19,150 |
| 2023-02-24 | 2023-02-22 | 0.600 | 193,581 | -18,310 | 0.03% | 116,083 |
| 2022-08-22 | 2022-08-18 | 0.609 | 211,891 | -10,173 | 0.05% | 129,146 |
| 2022-08-19 | 2022-08-17 | 0.698 | 222,064 | +183,104 | 0.05% | 154,993 |
| 2020-10-20 | 2020-10-16 | 0.300 | 38,960 | -111,643 | 0.01% | 11,691 |
| 2019-12-23 | 2019-12-19 | 0.280 | 150,603 | -351,146 | 0.01% | 42,130 |
| 2018-12-03 | 2018-11-29 | 0.361 | 501,749 | -58,983 | 0.04% | 181,192 |
| 2018-10-15 | 2018-10-11 | 0.534 | 560,732 | +403,051 | 0.04% | 299,460 |
| 2018-09-26 | 2018-09-21 | 0.554 | 157,681 | +7,078 | 0.01% | 87,418 |
| 2018-05-09 | 2018-05-07 | 0.610 | 150,603 | -177,736 | 0.01% | 91,920 |
| 2018-05-08 | 2018-05-04 | 0.631 | 328,339 | +177,736 | 0.02% | 207,080 |
| 2018-02-09 | 2018-02-07 | 0.809 | 150,603 | -11,797 | 0.01% | 121,794 |
| 2018-02-08 | 2018-02-06 | 0.799 | 162,400 | +7,471 | 0.01% | 129,682 |
| 2018-02-01 | 2018-01-30 | 0.921 | 154,929 | +4,326 | 0.01% | 142,628 |
| 2017-12-22 | 2017-12-20 | 0.895 | 150,603 | -11,797 | 0.01% | 134,816 |
| 2017-11-15 | 2017-11-13 | 1.017 | 162,400 | +9,831 | 0.01% | 165,200 |
| 2017-10-12 | 2017-10-10 | 1.027 | 152,569 | +19,661 | 0.01% | 156,751 |
| 2017-09-29 | 2017-09-27 | 0.885 | 132,908 | +3,539 | 0.01% | 117,624 |
| 2017-09-08 | 2017-09-06 | 0.936 | 129,369 | -8,258 | 0.01% | 121,072 |
| 2017-09-07 | 2017-09-05 | 0.921 | 137,627 | -3,146 | 0.01% | 126,700 |
| 2017-09-06 | 2017-09-04 | 0.910 | 140,773 | -96,732 | 0.01% | 128,164 |
| 2017-09-04 | 2017-08-31 | 0.946 | 237,505 | -39,322 | 0.02% | 224,688 |
| 2017-09-01 | 2017-08-30 | 0.921 | 276,827 | +23,593 | 0.02% | 254,848 |
| 2017-08-30 | 2017-08-28 | 0.987 | 253,234 | -11,797 | 0.02% | 249,872 |
| 2017-08-29 | 2017-08-25 | 0.982 | 265,031 | -6,684 | 0.02% | 260,164 |
| 2017-08-28 | 2017-08-24 | 1.012 | 271,715 | -5,112 | 0.02% | 275,018 |
| 2017-03-30 | 2017-03-28 | 1.500 | 276,827 | +21,627 | 0.03% | 415,360 |
| 2017-03-29 | 2017-03-27 | 1.475 | 255,200 | +13,369 | 0.03% | 376,420 |
| 2017-03-28 | 2017-03-24 | 1.500 | 241,831 | +11,797 | 0.03% | 362,851 |
| 2017-03-16 | 2017-03-14 | 1.373 | 230,034 | -53,085 | 0.03% | 315,900 |
| 2017-02-22 | 2017-02-20 | 1.526 | 283,119 | +48,760 | 0.04% | 432,001 |
| 2017-02-21 | 2017-02-17 | 1.551 | 234,359 | -48,366 | 0.03% | 363,560 |
| 2017-02-10 | 2017-02-08 | 1.526 | 282,725 | +62,522 | 0.04% | 431,399 |
| 2016-12-02 | 2016-11-30 | 1.653 | 220,203 | +37,749 | 0.03% | 363,999 |
| 2016-10-28 | 2016-10-26 | 1.551 | 182,454 | -93,193 | 0.03% | 283,040 |
| 2016-10-03 | 2016-09-29 | 1.155 | 275,647 | +46,400 | 0.04% | 318,253 |
| 2016-09-30 | 2016-09-28 | 1.160 | 229,247 | +99,091 | 0.03% | 265,847 |
| 2016-09-29 | 2016-09-27 | 1.139 | 130,156 | +19,661 | 0.02% | 148,288 |
| 2016-09-27 | 2016-09-23 | 0.905 | 110,495 | +24,380 | 0.02% | 100,036 |
| 2016-09-26 | 2016-09-22 | 0.854 | 86,115 | -260,312 | 0.01% | 73,584 |
| 2016-09-01 | 2016-08-30 | 0.865 | 346,427 | -19,268 | 0.05% | 299,540 |
| 2016-08-26 | 2016-08-24 | 0.854 | 365,695 | -51,119 | 0.05% | 312,480 |
| 2016-08-24 | 2016-08-22 | 0.788 | 416,814 | +51,119 | 0.06% | 328,600 |
| 2016-07-25 | 2016-07-21 | 0.758 | 365,695 | -108,529 | 0.05% | 277,140 |
| 2016-07-20 | 2016-07-18 | 0.727 | 474,224 | +98,305 | 0.07% | 344,916 |
| 2016-07-18 | 2016-07-14 | 0.743 | 375,919 | -88,081 | 0.06% | 279,152 |
| 2016-07-15 | 2016-07-13 | 0.722 | 464,000 | +98,305 | 0.07% | 335,120 |
| 2016-07-11 | 2016-07-07 | 0.758 | 365,695 | -133,695 | 0.05% | 277,140 |
| 2016-07-07 | 2016-07-05 | 0.727 | 499,390 | -23,593 | 0.07% | 363,220 |
| 2016-06-24 | 2016-06-22 | 0.661 | 522,983 | +25,166 | 0.08% | 345,800 |
| 2016-06-23 | 2016-06-21 | 0.687 | 497,817 | +2,753 | 0.07% | 341,820 |
| 2016-06-22 | 2016-06-20 | 0.682 | 495,064 | +78,644 | 0.07% | 337,412 |
| 2016-06-21 | 2016-06-17 | 0.712 | 416,420 | +78,644 | 0.06% | 296,520 |
| 2016-06-08 | 2016-06-06 | 0.961 | 337,776 | -65,275 | 0.05% | 324,702 |
| 2016-05-24 | 2016-05-20 | 0.763 | 403,051 | -277,613 | 0.06% | 307,500 |
| 2016-05-23 | 2016-05-19 | 0.732 | 680,664 | +225,708 | 0.10% | 498,528 |
| 2016-04-21 | 2016-04-19 | 0.849 | 454,956 | -165,939 | 0.07% | 386,438 |
| 2016-04-06 | 2016-04-01 | 0.712 | 620,895 | -11,797 | 0.09% | 442,120 |
| 2016-03-23 | 2016-03-21 | 0.763 | 632,692 | +11,797 | 0.09% | 482,700 |
| 2016-03-15 | 2016-03-11 | 0.707 | 620,895 | -39,322 | 0.09% | 438,962 |
| 2016-03-14 | 2016-03-10 | 0.748 | 660,217 | +39,322 | 0.10% | 493,626 |
| 2016-01-18 | 2016-01-14 | 0.549 | 620,895 | +8,651 | 0.09% | 341,064 |
| 2015-12-18 | 2015-12-16 | 0.570 | 612,244 | -6,292 | 0.09% | 348,768 |
| 2015-12-17 | 2015-12-15 | 0.585 | 618,536 | +6,292 | 0.09% | 361,790 |
| 2015-12-03 | 2015-12-01 | 0.610 | 612,244 | -7,078 | 0.09% | 373,680 |
| 2015-10-26 | 2015-10-22 | 0.671 | 619,322 | -786 | 0.09% | 415,800 |
| 2015-10-15 | 2015-10-13 | 0.768 | 620,108 | +393 | 0.09% | 476,254 |
| 2015-10-14 | 2015-10-12 | 0.778 | 619,715 | +786 | 0.09% | 482,256 |
| 2015-09-14 | 2015-09-10 | 0.646 | 618,929 | +9,831 | 0.09% | 399,796 |
| 2015-08-27 | 2015-08-25 | 0.621 | 609,098 | +7,078 | 0.09% | 377,956 |
| 2015-07-17 | 2015-07-15 | 0.926 | 602,020 | +40,501 | 0.09% | 557,284 |
| 2015-07-16 | 2015-07-14 | 1.032 | 561,519 | +219,417 | 0.08% | 579,768 |
| 2015-07-15 | 2015-07-13 | 1.078 | 342,102 | -255,593 | 0.05% | 368,880 |
| 2015-07-13 | 2015-07-09 | 0.814 | 597,695 | -9,830 | 0.09% | 486,400 |
| 2015-07-09 | 2015-07-07 | 0.559 | 607,525 | -98,306 | 0.09% | 339,900 |
| 2015-07-08 | 2015-07-06 | 0.727 | 705,831 | +206,441 | 0.11% | 513,370 |
| 2015-07-07 | 2015-07-03 | 0.987 | 499,390 | -226,102 | 0.07% | 492,760 |
| 2015-07-06 | 2015-07-02 | 1.124 | 725,492 | -15,335 | 0.11% | 815,491 |
| 2015-07-03 | 2015-06-30 | 1.231 | 740,827 | -19,661 | 0.11% | 911,856 |
| 2015-07-02 | 2015-06-29 | 1.155 | 760,488 | -235,932 | 0.11% | 878,036 |
| 2015-06-30 | 2015-06-26 | 1.322 | 996,420 | -58,983 | 0.15% | 1,317,680 |
| 2015-06-29 | 2015-06-25 | 1.424 | 1,055,403 | +19,661 | 0.16% | 1,503,039 |
| 2015-06-26 | 2015-06-24 | 1.500 | 1,035,742 | -30,278 | 0.15% | 1,554,059 |
| 2015-06-25 | 2015-06-23 | 1.526 | 1,066,020 | +39,322 | 0.16% | 1,626,599 |
| 2015-06-23 | 2015-06-19 | 1.500 | 1,026,698 | -99,092 | 0.15% | 1,540,490 |
| 2015-06-18 | 2015-06-16 | 1.602 | 1,125,790 | +30,278 | 0.17% | 1,803,690 |
| 2015-06-17 | 2015-06-15 | 1.475 | 1,095,512 | +23,987 | 0.16% | 1,615,880 |
| 2015-06-16 | 2015-06-12 | 1.450 | 1,071,525 | -16,122 | 0.16% | 1,553,249 |
| 2015-06-15 | 2015-06-11 | 1.297 | 1,087,647 | -78,645 | 0.16% | 1,410,659 |
| 2015-06-12 | 2015-06-10 | 1.256 | 1,166,292 | +19,661 | 0.17% | 1,465,205 |
| 2015-06-09 | 2015-06-05 | 1.526 | 1,146,631 | -39,322 | 0.17% | 1,749,601 |
| 2015-06-05 | 2015-06-03 | 1.526 | 1,185,953 | -39,322 | 0.18% | 1,809,601 |
| 2015-06-03 | 2015-06-01 | 1.551 | 1,225,275 | -23,986 | 0.18% | 1,900,761 |
| 2015-06-01 | 2015-05-28 | 1.577 | 1,249,261 | +19,661 | 0.19% | 1,969,740 |
| 2015-05-29 | 2015-05-27 | 1.628 | 1,229,600 | -7,864 | 0.18% | 2,001,280 |
| 2015-05-27 | 2015-05-22 | 1.729 | 1,237,464 | +197,396 | 0.18% | 2,139,959 |
| 2015-05-26 | 2015-05-21 | 1.653 | 1,040,068 | -10,224 | 0.15% | 1,719,250 |
| 2015-05-22 | 2015-05-20 | 1.551 | 1,050,292 | +102,631 | 0.16% | 1,629,311 |
| 2015-05-21 | 2015-05-19 | 1.628 | 947,661 | +393 | 0.14% | 1,542,400 |
| 2015-05-19 | 2015-05-15 | 1.653 | 947,268 | -275,647 | 0.14% | 1,565,850 |
| 2015-05-18 | 2015-05-14 | 1.602 | 1,222,915 | -274,075 | 0.18% | 1,959,300 |
| 2015-05-13 | 2015-05-11 | 1.729 | 1,496,990 | +468,326 | 0.22% | 2,588,760 |
| 2015-05-12 | 2015-05-08 | 1.729 | 1,028,664 | -402,658 | 0.15% | 1,778,879 |
| 2015-05-08 | 2015-05-06 | 1.551 | 1,431,322 | -20,447 | 0.21% | 2,220,400 |
| 2015-05-07 | 2015-05-05 | 1.628 | 1,451,769 | +82,969 | 0.22% | 2,362,879 |
| 2015-05-06 | 2015-05-04 | 1.653 | 1,368,800 | -26,346 | 0.20% | 2,262,650 |
| 2015-05-05 | 2015-04-30 | 1.882 | 1,395,146 | +194,644 | 0.21% | 2,625,520 |
| 2015-05-04 | 2015-04-29 | 1.755 | 1,200,502 | +305,533 | 0.18% | 2,106,571 |
| 2015-04-29 | 2015-04-27 | 1.114 | 894,969 | +98,305 | 0.13% | 996,887 |
| 2015-04-27 | 2015-04-23 | 1.048 | 796,664 | +39,715 | 0.12% | 834,712 |
| 2015-04-24 | 2015-04-22 | 1.119 | 756,949 | +176,556 | 0.11% | 847,000 |
| 2015-04-22 | 2015-04-20 | 0.890 | 580,393 | +39,322 | 0.09% | 516,600 |
| 2015-04-21 | 2015-04-17 | 0.941 | 541,071 | +58,983 | 0.08% | 509,120 |
| 2015-04-20 | 2015-04-16 | 1.017 | 482,088 | +88,474 | 0.07% | 490,400 |
| 2015-04-16 | 2015-04-14 | 1.022 | 393,614 | -58,983 | 0.06% | 402,402 |
| 2015-04-15 | 2015-04-13 | 1.068 | 452,597 | -196,610 | 0.07% | 483,420 |
| 2015-04-14 | 2015-04-10 | 0.834 | 649,207 | +39,322 | 0.10% | 541,528 |
| 2015-04-13 | 2015-04-09 | 0.727 | 609,885 | -152,569 | 0.09% | 443,586 |
| 2015-04-01 | 2015-03-30 | 0.661 | 762,454 | -39,715 | 0.11% | 504,140 |
| 2015-03-19 | 2015-03-17 | 0.676 | 802,169 | +31,457 | 0.12% | 542,640 |
| 2015-03-12 | 2015-03-10 | 0.676 | 770,712 | -19,661 | 0.11% | 521,360 |
| 2015-03-10 | 2015-03-06 | 0.702 | 790,373 | -17,695 | 0.12% | 554,760 |
| 2015-02-09 | 2015-02-05 | 0.722 | 808,068 | -17,695 | 0.12% | 583,620 |
| 2015-02-04 | 2015-02-02 | 0.687 | 825,763 | -15,729 | 0.12% | 567,000 |
| 2015-02-02 | 2015-01-29 | 0.631 | 841,492 | +11,797 | 0.13% | 530,720 |
| 2015-01-27 | 2015-01-23 | 0.666 | 829,695 | +58,983 | 0.12% | 552,820 |
| 2015-01-21 | 2015-01-19 | 0.671 | 770,712 | -35,390 | 0.11% | 517,440 |
| 2015-01-19 | 2015-01-15 | 0.737 | 806,102 | +98,305 | 0.12% | 594,500 |
| 2015-01-12 | 2015-01-08 | 0.743 | 707,797 | +89,655 | 0.11% | 525,600 |
| 2014-12-30 | 2014-12-24 | 0.707 | 618,142 | +117,966 | 0.09% | 437,016 |
| 2014-12-23 | 2014-12-19 | 0.753 | 500,176 | -4,326 | 0.07% | 376,512 |
| 2014-12-19 | 2014-12-17 | 0.809 | 504,502 | -23,986 | 0.08% | 407,994 |
| 2014-12-18 | 2014-12-16 | 0.865 | 528,488 | +8,257 | 0.08% | 456,960 |
| 2014-12-17 | 2014-12-15 | 0.844 | 520,231 | +12,584 | 0.08% | 439,236 |
| 2014-12-16 | 2014-12-12 | 0.870 | 507,647 | -13,370 | 0.08% | 441,522 |
| 2014-12-15 | 2014-12-11 | 0.865 | 521,017 | +37,356 | 0.08% | 450,500 |
| 2014-12-12 | 2014-12-10 | 0.926 | 483,661 | +10,617 | 0.07% | 447,720 |
| 2014-12-11 | 2014-12-09 | 0.890 | 473,044 | -7,471 | 0.07% | 421,050 |
| 2014-12-08 | 2014-12-04 | 0.799 | 480,515 | -19,661 | 0.07% | 383,708 |
| 2014-12-04 | 2014-12-02 | 0.687 | 500,176 | +9,830 | 0.07% | 343,440 |
| 2014-11-20 | 2014-11-18 | 0.748 | 490,346 | +29,492 | 0.07% | 366,618 |
| 2014-11-14 | 2014-11-12 | 0.839 | 460,854 | -27,132 | 0.07% | 386,760 |
| 2014-11-12 | 2014-11-10 | 0.875 | 487,986 | -19,661 | 0.07% | 426,904 |
| 2014-11-11 | 2014-11-07 | 0.875 | 507,647 | +27,132 | 0.08% | 444,104 |
| 2014-10-31 | 2014-10-29 | 0.814 | 480,515 | -9,831 | 0.07% | 391,040 |
| 2014-10-30 | 2014-10-28 | 0.829 | 490,346 | +7,865 | 0.07% | 406,522 |
| 2014-10-29 | 2014-10-27 | 0.839 | 482,481 | +9,830 | 0.07% | 404,910 |
| 2014-10-28 | 2014-10-24 | 0.890 | 472,651 | +11,797 | 0.07% | 420,700 |
| 2014-10-27 | 2014-10-23 | 0.931 | 460,854 | -57,804 | 0.07% | 428,952 |
| 2014-10-24 | 2014-10-22 | 0.885 | 518,658 | +9,831 | 0.08% | 459,012 |
| 2014-10-20 | 2014-10-16 | 0.966 | 508,827 | -393,220 | 0.08% | 491,720 |
| 2014-10-17 | 2014-10-15 | 1.012 | 902,047 | +334,237 | 0.13% | 913,012 |
| 2014-10-14 | 2014-10-10 | 0.895 | 567,810 | +58,983 | 0.08% | 508,288 |
| 2014-10-13 | 2014-10-09 | 0.900 | 508,827 | +29,491 | 0.08% | 458,076 |
| 2014-10-10 | 2014-10-08 | 0.916 | 479,336 | +9,831 | 0.07% | 438,840 |
| 2014-10-08 | 2014-10-06 | 1.002 | 469,505 | -57,017 | 0.07% | 470,436 |
| 2014-10-06 | 2014-09-30 | 0.951 | 526,522 | +57,017 | 0.08% | 500,786 |
| 2014-09-23 | 2014-09-19 | 0.814 | 469,505 | +76,285 | 0.07% | 382,080 |
| 2014-08-27 | 2014-08-25 | 0.946 | 393,220 | -7,865 | 0.06% | 372,000 |
| 2014-08-26 | 2014-08-22 | 0.971 | 401,085 | +22,807 | 0.06% | 389,640 |
| 2014-08-22 | 2014-08-20 | 1.048 | 378,278 | +187,959 | 0.06% | 396,344 |
| 2014-08-21 | 2014-08-19 | 0.977 | 190,319 | +78,251 | 0.03% | 185,856 |
| 2014-08-19 | 2014-08-15 | 1.002 | 112,068 | -9,437 | 0.02% | 112,290 |
| 2014-08-18 | 2014-08-14 | 1.099 | 121,505 | +16,515 | 0.02% | 133,488 |
| 2014-08-15 | 2014-08-13 | 1.109 | 104,990 | -634,657 | 0.02% | 116,412 |
| 2014-08-14 | 2014-08-12 | 1.200 | 739,647 | +66,847 | 0.11% | 887,831 |
| 2014-08-13 | 2014-08-11 | 1.205 | 672,800 | +249,695 | 0.10% | 811,014 |
| 2014-08-12 | 2014-08-08 | 1.114 | 423,105 | +32,637 | 0.06% | 471,288 |
| 2014-08-11 | 2014-08-07 | 1.078 | 390,468 | +69,207 | 0.06% | 421,032 |
| 2014-08-08 | 2014-08-06 | 0.997 | 321,261 | +214,698 | 0.05% | 320,264 |
| 2014-08-04 | 2014-07-31 | 0.987 | 106,563 | +16,516 | 0.02% | 105,148 |
| 2014-07-23 | 2014-07-21 | 0.799 | 90,047 | -270,536 | 0.01% | 71,906 |
| 2014-07-21 | 2014-07-17 | 0.646 | 360,583 | +270,536 | 0.05% | 232,918 |
| 2014-07-14 | 2014-07-10 | 0.610 | 90,047 | +20,840 | 0.01% | 54,960 |
| 2014-07-09 | 2014-07-07 | 0.626 | 69,207 | +12,583 | 0.01% | 43,296 |
| 2014-06-25 | 2014-06-23 | 0.539 | 56,624 | +1,180 | 0.01% | 30,528 |
| 2014-06-19 | 2014-06-17 | 0.570 | 55,444 | -6,292 | 0.01% | 31,584 |
| 2014-05-28 | 2014-05-26 | 0.473 | 61,736 | +39,322 | 0.01% | 29,202 |
| 2014-04-01 | 2014-03-28 | 0.590 | 22,414 | +16,122 | 0.00% | 13,224 |
| 2014-01-02 | 2013-12-27 | 0.437 | 6,292 | -1,179 | 0.00% | 2,752 |
| 2013-12-05 | 2013-12-03 | 0.483 | 7,471 | +1,179 | 0.00% | 3,610 |
| 2013-09-30 | 2013-09-26 | 0.468 | 6,292 | -31,457 | 0.00% | 2,944 |
| 2013-09-13 | 2013-09-11 | 0.519 | 37,749 | +31,457 | 0.01% | 19,584 |
| 2013-09-10 | 2013-09-06 | 0.514 | 6,292 | +6,292 | 0.00% | 3,232 |
| 2007-06-26 | 2007-06-22 | 0 |
Powered by Renavon Data — Hong Kong financial data services, built on Webb-site.com datasets (CC-BY 4.0)
Sign up for our free newsletter
Recommend Renavon Hong Kong to a friend
Copyright & disclaimer, Privacy policy