$1.$ As of May $2018,$ what challenges had Pataka Tea Co$.,$ Ltd$.($PT$)$ faced in recent years? Assess the factors in the internal and external environment that led to those challenges and link it to the case and provide examples. Use these factors for internal and external environment: For external use: Econmy, Demographics, Technology and Competition and For internal use: strategy, structure, style, staff, skills, and systems.