0001078782-19-000076 8-K 3 20190117 1.01 9.01 20190123 20190123 APT Systems Inc 0001543739 8742 990370904 DE 0131 8-K 34 000-54865 19537863 505 MONTGOMERY STREET 11TH FLOOR SAN FRANCISCO CA 94111 (415)-200-1105 505 MONTGOMERY STREET 11TH FLOOR SAN FRANCISCO CA 94111 8-K 1 f8k012319_8k.htm FORM 8-K CURRENT REPORT EX-16.1 2 f8k012319_ex16z1.htm EXHIBIT 16.1 AUDITOR'S LETTER GRAPHIC 3 f8k012319ex16z11.jpg IMAGE