Philippines Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Hong Kong was US$1.38 Thousand during 2022, according to the United Nations COMTRADE database on international trade. Philippines Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Hong Kong - data, historical chart and statistics - was last updated on May of 2024.