By David Alire Garcia

MEXICO CITY, June 4 (Reuters) - Mexico will impose a 20 percent tariff on U.S. pork imports, two industry officials with direct knowledge of the plan told Reuters, for the first time providing details of the country's retaliation to U.S. President Donald Trump's metals tariffs.

Last week, Mexico Live Gold Price Chart | Silver Prices said the retaliatory tariffs would apply to pork legs and shoulders from U.S. suppliers, who account for about 90 percent of the country's $1.07 billion annual imports of the cuts.

"It's a 20 percent (tariff) on legs and shoulders, fresh and frozen ... with bones and without bones," said Heriberto Hernandez, president of Mexico's leading pork producers association OPORPA, following a briefing earlier on Monday with Economy Minister Ildefonso Guajardo and his team.

The government has not yet given details of the level of the tariff and did not immediately respond to a request for a comment about the tariff or about the meeting. (Reporting by David Alire Garcia)