HAVANA, Nov 30 (Reuters) - China, Russia, Algeria and Turkey have pledged to restructure Cuba's debt, provide new trade and investment financing, and help ease an energy crisis, Cuban President Miguel Diaz-Canel told state-run media following a rare trip abroad last week. Cuba's debt with business partners and suppliers has ballooned, leading some to refuse to do business with Cuba unless it is in cash, according to foreign business and diplomatic sources with knowledge of recent transactions. Cuba's current foreign debt is considered a state secret. Prior to the pandemic, in 2019, the Caribbean island nation reported its foreign debt at $19.6 billion. "There is no short-term solution to Cuba's electric power sector challenges; the system is old, tired and broken.

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