United States exports of Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 was $423,365.86K and quantity 41,099,000Kg. United States exported Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 to Canada ($97,572.50K , 15,744,400 Kg), Mexico ($84,958.75K , 10,555,300 Kg), China ($40,157.79K , 918,149 Kg), United Kingdom ($17,683.31K , 329,889 Kg), Costa Rica ($13,963.16K , 435,695 Kg).Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 imports by country in 2021
| Reporter | TradeFlow | ProductCode | Product Description | Year | Partner | Trade Value 1000USD | Quantity | Quantity Unit |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | World | 423,365.86 | 41,099,000 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Canada | 97,572.50 | 15,744,400 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Mexico | 84,958.75 | 10,555,300 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | China | 40,157.79 | 918,149 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | United Kingdom | 17,683.31 | 329,889 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Costa Rica | 13,963.16 | 435,695 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Germany | 12,890.41 | 284,804 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | France | 11,533.82 | 121,436 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Saudi Arabia | 11,205.84 | 2,226,440 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Singapore | 10,935.38 | 667,514 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Japan | 10,684.01 | 248,890 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Malaysia | 9,609.53 | 44,100 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Ireland | 7,812.31 | 79,370 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Australia | 7,338.84 | 412,817 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Netherlands | 6,885.26 | 275,735 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Korea, Rep. | 6,669.25 | 230,847 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Switzerland | 5,170.04 | 32,269 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Other Asia, nes | 4,232.74 | 55,159 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Bahamas, The | 3,972.69 | 611,871 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Brazil | 3,951.13 | 181,961 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Italy | 3,434.61 | 159,186 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Belgium | 3,381.11 | 86,599 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Turkey | 3,012.26 | 233,147 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Colombia | 2,772.55 | 420,468 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | India | 2,594.40 | 108,453 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Denmark | 2,583.94 | 30,863 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Spain | 2,546.41 | 115,096 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Chile | 2,242.07 | 413,867 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Jamaica | 2,221.93 | 2,914,770 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Israel | 1,813.96 | 98,194 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Cayman Islands | 1,679.08 | 296,823 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Oman | 1,678.33 | 209,000 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Kazakhstan | 1,345.19 | 686,138 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Russian Federation | 1,305.91 | 17,831 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Argentina | 1,236.64 | 61,515 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | United Arab Emirates | 1,217.66 | 140,047 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Thailand | 1,208.32 | 29,675 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | New Zealand | 1,169.82 | 103,056 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Hong Kong, China | 1,159.09 | 37,366 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Indonesia | 1,117.97 | 196,355 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Moldova | 1,073.66 | 1,792 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Philippines | 1,038.09 | 33,718 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Algeria | 922.80 | 5,805 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Sweden | 811.06 | 5,338 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Panama | 765.38 | 106,392 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Poland | 741.78 | 9,138 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Guyana | 712.64 | 98,390 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Guatemala | 624.85 | 79,893 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Honduras | 610.69 | 69,435 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Czech Republic | 480.16 | 8,562 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Dominican Republic | 461.78 | 68,821 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Turks and Caicos Isl. | 424.61 | 57,790 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Egypt, Arab Rep. | 400.12 | 4,806 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | South Africa | 395.77 | 19,031 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Peru | 364.81 | 19,489 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Bermuda | 364.10 | 16,075 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Barbados | 351.03 | 58,781 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Trinidad and Tobago | 335.59 | 57,052 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Ghana | 331.35 | 2,500 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Ecuador | 330.07 | 28,147 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | El Salvador | 277.02 | 44,273 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | St. Kitts and Nevis | 267.43 | 45,516 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Romania | 263.55 | 4,545 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Bahrain | 227.10 | 14,444 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Ukraine | 204.12 | 48,887 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Vietnam | 189.17 | 9,632 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Qatar | 187.32 | 13,774 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Norway | 184.11 | 448 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Niger | 155.85 | 1,555 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Lithuania | 153.42 | 3,958 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Slovak Republic | 152.40 | 17,338 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Anguila | 148.62 | 18,232 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | British Virgin Islands | 141.67 | 9,233 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Cyprus | 130.00 | 53,000 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Belarus | 113.49 | 733 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Belize | 109.42 | 21,868 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Portugal | 108.29 | 19,142 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Antigua and Barbuda | 105.53 | 24,075 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Dominica | 104.12 | 8,852 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Croatia | 97.82 | 26,109 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Hungary | 86.34 | 7,482 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Tunisia | 80.57 | 862 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Nicaragua | 79.67 | 26,000 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Liberia | 75.00 | 271 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Greece | 73.82 | 23,073 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Grenada | 72.54 | 7,963 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Bolivia | 68.81 | 22,938 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Austria | 65.27 | 768 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Kuwait | 63.18 | 3,610 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | St. Lucia | 60.66 | 10,647 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Senegal | 60.52 | 1,189 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Sri Lanka | 49.73 | 2,205 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Luxembourg | 47.51 | 692 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Iraq | 45.99 | 1,251 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Haiti | 44.47 | 6,509 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Finland | 44.25 | 1,883 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Aruba | 42.96 | 5,594 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Mauritius | 40.84 | 36 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Papua New Guinea | 40.07 | 1,231 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Venezuela | 38.08 | 7,654 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Ethiopia(excludes Eritrea) | 33.01 | 46 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Saint Maarten (Dutch part) | 28.17 | 2,158 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Congo, Rep. | 24.19 | 1,297 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Macao | 22.11 | 6 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Pakistan | 20.23 | 700 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Suriname | 20.03 | 1,035 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Azerbaijan | 19.88 | 74 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Morocco | 19.15 | 2,246 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Afghanistan | 18.61 | 173 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Angola | 18.59 | 213 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Curaçao | 17.55 | 2,498 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Latvia | 17.36 | 26 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Brunei | 16.64 | 8 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Cameroon | 13.94 | 75 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Uruguay | 13.64 | 3,391 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Slovenia | 11.45 | 98 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Equatorial Guinea | 9.83 | 347 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Nigeria | 8.46 | 18 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Estonia | 7.47 | 15 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Serbia, FR(Serbia/Montenegro) | 6.80 | 505 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Jordan | 6.08 | 61 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Kyrgyz Republic | 5.73 | 141 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Djibouti | 4.86 | 191 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Maldives | 4.33 | 91 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Georgia | 3.42 | 2 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Lao PDR | 2.66 | 20 | Kg |
| United States | Export | 391739 | Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30 | 2021 | Mali | 2.64 | 65 | Kg |
HS Nomenclature used HS 1988/92 (H0)HS Code 391739: Plastics; tubes, pipes and hoses thereof, n.e.s. in item no. 3917.30Please note: Exports is gross exports and Imports is gross imports