Plans for a fifth cross-border railway linking China and Russia are taking shape as regional officials move to further cement trade and broader collaboration while geopolitical volatility pushes the two countries closer together.Last week, the government of the northernmost province bordering Russia – Heilongjiang – issued a tender notice for the feasibility study and preliminary design of a new cross-border railway.The line aims to connect the Chinese city of Heihe with Blagoveshchensk, the...