MRNA in China can be stored for a week at room temperature, which is different from that in the United States.
It is improvement but not innovation. Innovation is something never done before. For example, Su-57 has hybrid LERX / canards. That is innovation. For example, Su-75 has hybrid lateral / underside air intake. That is innovation. If Type 055 destroyer gets rid of main gun and replaces it with VLS then that would be innovation.